3620997 has 16 divisors (see below), whose sum is σ = 5496960. Its totient is φ = 2354400.

The previous prime is 3620993. The next prime is 3620999. The reversal of 3620997 is 7990263.

It is not a de Polignac number, because 3620997 - 2² = 3620993 is a prime.

It is a super-2 number, since 2×3620997² = 26223238548018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3620993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 529 + ... + 2742.

It is an arithmetic number, because the mean of its divisors is an integer number (343560).

Almost surely, 2^3620997 is an apocalyptic number.

It is an amenable number.

3620997 is a deficient number, since it is larger than the sum of its proper divisors (1875963).

3620997 is a wasteful number, since it uses less digits than its factorization.

3620997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3321 (or 3315 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 3620997 is about 1902.8917467896. The cubic root of 3620997 is about 153.5592757027.

The spelling of 3620997 in words is "three million, six hundred twenty thousand, nine hundred ninety-seven".