3577421 has 4 divisors (see below), whose sum is σ = 3583644. Its totient is φ = 3571200.

The previous prime is 3577417. The next prime is 3577459. The reversal of 3577421 is 1247753.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2280100 + 1297321 = 1510^2 + 1139^2 .

It is a cyclic number.

It is not a de Polignac number, because 3577421 - 2² = 3577417 is a prime.

It is a super-2 number, since 2×3577421² = 25595882022482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3577921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2150 + ... + 3431.

It is an arithmetic number, because the mean of its divisors is an integer number (895911).

Almost surely, 2^3577421 is an apocalyptic number.

It is an amenable number.

3577421 is a deficient number, since it is larger than the sum of its proper divisors (6223).

3577421 is an equidigital number, since it uses as much as digits as its factorization.

3577421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6222.

The product of its digits is 5880, while the sum is 29.

The square root of 3577421 is about 1891.4071481307. The cubic root of 3577421 is about 152.9407975771.

The spelling of 3577421 in words is "three million, five hundred seventy-seven thousand, four hundred twenty-one".