3645702 has 32 divisors (see below), whose sum is σ = 8168160. Its totient is φ = 1205280.

The previous prime is 3645683. The next prime is 3645703. The reversal of 3645702 is 2075463.

It is a happy number.

It is a super-2 number, since 2×3645702² = 26582286145608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3645703) 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, 9588 + ... + 9960.

It is an arithmetic number, because the mean of its divisors is an integer number (255255).

Almost surely, 2^3645702 is an apocalyptic number.

3645702 is an abundant number, since it is smaller than the sum of its proper divisors (4522458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3645702 is a wasteful number, since it uses less digits than its factorization.

3645702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 3645702 is about 1909.3721481157. The cubic root of 3645702 is about 153.9077144277.

The spelling of 3645702 in words is "three million, six hundred forty-five thousand, seven hundred two".