3930637 has 2 divisors, whose sum is σ = 3930638. Its totient is φ = 3930636.

The previous prime is 3930613. The next prime is 3930653. The reversal of 3930637 is 7360393.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3884841 + 45796 = 1971^2 + 214^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3930637 is a prime.

3930637 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3930599 and 3930608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3930607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1965318 + 1965319.

It is an arithmetic number, because the mean of its divisors is an integer number (1965319).

Almost surely, 2^3930637 is an apocalyptic number.

It is an amenable number.

3930637 is a deficient number, since it is larger than the sum of its proper divisors (1).

3930637 is an equidigital number, since it uses as much as digits as its factorization.

3930637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 31.

The square root of 3930637 is about 1982.5834156474. The cubic root of 3930637 is about 157.8171922991.

The spelling of 3930637 in words is "three million, nine hundred thirty thousand, six hundred thirty-seven".