3620685 has 16 divisors (see below), whose sum is σ = 5820480. Its totient is φ = 1921920.

The previous prime is 3620681. The next prime is 3620689. The reversal of 3620685 is 5860263.

It is an interprime number because it is at equal distance from previous prime (3620681) and next prime (3620689).

It is not a de Polignac number, because 3620685 - 2² = 3620681 is a prime.

It is an Ulam 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 15 ways as a sum of consecutive naturals, for example, 3786 + ... + 4644.

It is an arithmetic number, because the mean of its divisors is an integer number (363780).

Almost surely, 2^3620685 is an apocalyptic number.

It is an amenable number.

3620685 is a deficient number, since it is larger than the sum of its proper divisors (2199795).

3620685 is a wasteful number, since it uses less digits than its factorization.

3620685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 3620685 is about 1902.8097645324. The cubic root of 3620685 is about 153.5548651430.

The spelling of 3620685 in words is "three million, six hundred twenty thousand, six hundred eighty-five".