3620987 has 8 divisors (see below), whose sum is σ = 3744576. Its totient is φ = 3499272.

The previous prime is 3620977. The next prime is 3620989. The reversal of 3620987 is 7890263.

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 3620987 - 2⁶ = 3620923 is a prime.

It is a super-2 number, since 2×3620987² = 26223093708338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3620989) 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, 4208 + ... + 4994.

It is an arithmetic number, because the mean of its divisors is an integer number (468072).

Almost surely, 2^3620987 is an apocalyptic number.

3620987 is a deficient number, since it is larger than the sum of its proper divisors (123589).

3620987 is a wasteful number, since it uses less digits than its factorization.

3620987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 3620987 is about 1902.8891192079. The cubic root of 3620987 is about 153.5591343425.

The spelling of 3620987 in words is "three million, six hundred twenty thousand, nine hundred eighty-seven".