3690687 has 32 divisors (see below), whose sum is σ = 6612480. Its totient is φ = 1768320.

The previous prime is 3690677. The next prime is 3690689. The reversal of 3690687 is 7860963.

It is not a de Polignac number, because 3690687 - 2⁴ = 3690671 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

3690687 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3690689) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2389 + ... + 3617.

It is an arithmetic number, because the mean of its divisors is an integer number (206640).

Almost surely, 2^3690687 is an apocalyptic number.

3690687 is a deficient number, since it is larger than the sum of its proper divisors (2921793).

3690687 is a wasteful number, since it uses less digits than its factorization.

3690687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 3690687 is about 1921.1160818649. The cubic root of 3690687 is about 154.5381604715.

The spelling of 3690687 in words is "three million, six hundred ninety thousand, six hundred eighty-seven".