3400621 has 8 divisors (see below), whose sum is σ = 3911040. Its totient is φ = 2896368.

The previous prime is 3400613. The next prime is 3400637. The reversal of 3400621 is 1260043.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3400621 - 2³ = 3400613 is a prime.

It is a super-3 number, since 3×3400621³ (a number of 21 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3400595 and 3400604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3400681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286 + ... + 2623.

It is an arithmetic number, because the mean of its divisors is an integer number (488880).

Almost surely, 2^3400621 is an apocalyptic number.

It is an amenable number.

3400621 is a deficient number, since it is larger than the sum of its proper divisors (510419).

3400621 is a wasteful number, since it uses less digits than its factorization.

3400621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3083.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 3400621 is about 1844.0772760381. The cubic root of 3400621 is about 150.3786139097.

Adding to 3400621 its reverse (1260043), we get a palindrome (4660664).

The spelling of 3400621 in words is "three million, four hundred thousand, six hundred twenty-one".