3375621 has 32 divisors (see below), whose sum is σ = 5350400. Its totient is φ = 2099520.

The previous prime is 3375613. The next prime is 3375667. The reversal of 3375621 is 1265733.

It is a happy number.

3375621 is a `hidden beast` number, since 3 + 37 + 5 + 621 = 666.

It is not a de Polignac number, because 3375621 - 2³ = 3375613 is a prime.

It is a super-2 number, since 2×3375621² = 22789634271282, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

Its product of digits (3780) is a multiple of the sum of its prime divisors (180).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3375601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30915 + ... + 31023.

It is an arithmetic number, because the mean of its divisors is an integer number (167200).

Almost surely, 2^3375621 is an apocalyptic number.

3375621 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3375621 is a deficient number, since it is larger than the sum of its proper divisors (1974779).

3375621 is a wasteful number, since it uses less digits than its factorization.

3375621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 180 counting only the distinct ones).

The product of its digits is 3780, while the sum is 27.

The square root of 3375621 is about 1837.2863141057. The cubic root of 3375621 is about 150.0091994358.

The spelling of 3375621 in words is "three million, three hundred seventy-five thousand, six hundred twenty-one".