39977713 has 4 divisors (see below), whose sum is σ = 40483840. Its totient is φ = 39471588.

The previous prime is 39977671. The next prime is 39977731. The reversal of 39977713 is 31777993.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 39977713 - 2¹⁷ = 39846641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39977813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252945 + ... + 253102.

It is an arithmetic number, because the mean of its divisors is an integer number (10120960).

Almost surely, 2^39977713 is an apocalyptic number.

It is an amenable number.

39977713 is a deficient number, since it is larger than the sum of its proper divisors (506127).

39977713 is an equidigital number, since it uses as much as digits as its factorization.

39977713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506126.

The product of its digits is 250047, while the sum is 46.

The square root of 39977713 is about 6322.7931327855. The cubic root of 39977713 is about 341.9316604784.

The spelling of 39977713 in words is "thirty-nine million, nine hundred seventy-seven thousand, seven hundred thirteen".