3687979 has 2 divisors, whose sum is σ = 3687980. Its totient is φ = 3687978.

The previous prime is 3687973. The next prime is 3687989. The reversal of 3687979 is 9797863.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3687979 is a prime.

It is not a weakly prime, because it can be changed into another prime (3687973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1843989 + 1843990.

It is an arithmetic number, because the mean of its divisors is an integer number (1843990).

Almost surely, 2^3687979 is an apocalyptic number.

3687979 is a deficient number, since it is larger than the sum of its proper divisors (1).

3687979 is an equidigital number, since it uses as much as digits as its factorization.

3687979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 571536, while the sum is 49.

The square root of 3687979 is about 1920.4111538939. The cubic root of 3687979 is about 154.5003543454.

The spelling of 3687979 in words is "three million, six hundred eighty-seven thousand, nine hundred seventy-nine".