3620687 has 4 divisors (see below), whose sum is σ = 4137936. Its totient is φ = 3103440.

The previous prime is 3620681. The next prime is 3620689. The reversal of 3620687 is 7860263.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7860263 = 79 ⋅99497.

It is a cyclic number.

It is not a de Polignac number, because 3620687 - 2⁴ = 3620671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3620681) 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, 258614 + ... + 258627.

It is an arithmetic number, because the mean of its divisors is an integer number (1034484).

Almost surely, 2^3620687 is an apocalyptic number.

3620687 is a deficient number, since it is larger than the sum of its proper divisors (517249).

3620687 is an equidigital number, since it uses as much as digits as its factorization.

3620687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517248.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 3620687 is about 1902.8102900710. The cubic root of 3620687 is about 153.5548934166.

The spelling of 3620687 in words is "three million, six hundred twenty thousand, six hundred eighty-seven".