39900677 has 2 divisors, whose sum is σ = 39900678. Its totient is φ = 39900676.

The previous prime is 39900661. The next prime is 39900701. The reversal of 39900677 is 77600993.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24542116 + 15358561 = 4954^2 + 3919^2 .

It is an emirp because it is prime and its reverse (77600993) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39900677 - 2⁴ = 39900661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39900617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19950338 + 19950339.

It is an arithmetic number, because the mean of its divisors is an integer number (19950339).

Almost surely, 2^39900677 is an apocalyptic number.

It is an amenable number.

39900677 is a deficient number, since it is larger than the sum of its proper divisors (1).

39900677 is an equidigital number, since it uses as much as digits as its factorization.

39900677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71442, while the sum is 41.

The square root of 39900677 is about 6316.6982672912. The cubic root of 39900677 is about 341.7118881515.

The spelling of 39900677 in words is "thirty-nine million, nine hundred thousand, six hundred seventy-seven".