3656679 has 8 divisors (see below), whose sum is σ = 5250672. Its totient is φ = 2250240.

The previous prime is 3656669. The next prime is 3656689. The reversal of 3656679 is 9766563.

It is an interprime number because it is at equal distance from previous prime (3656669) and next prime (3656689).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3656679 - 2⁴ = 3656663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3656679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3656669) 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, 46842 + ... + 46919.

It is an arithmetic number, because the mean of its divisors is an integer number (656334).

Almost surely, 2^3656679 is an apocalyptic number.

3656679 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

3656679 is a deficient number, since it is larger than the sum of its proper divisors (1593993).

3656679 is a wasteful number, since it uses less digits than its factorization.

3656679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93777.

The product of its digits is 204120, while the sum is 42.

The square root of 3656679 is about 1912.2444927362. The cubic root of 3656679 is about 154.0620287596.

The spelling of 3656679 in words is "three million, six hundred fifty-six thousand, six hundred seventy-nine".