39977313 has 8 divisors (see below), whose sum is σ = 53387328. Its totient is φ = 26609424.

The previous prime is 39977303. The next prime is 39977347. The reversal of 39977313 is 31377993.

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

It is not a de Polignac number, because 39977313 - 2⁴ = 39977297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39977303) 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, 8245 + ... + 12162.

It is an arithmetic number, because the mean of its divisors is an integer number (6673416).

Almost surely, 2^39977313 is an apocalyptic number.

It is an amenable number.

39977313 is a deficient number, since it is larger than the sum of its proper divisors (13410015).

39977313 is a wasteful number, since it uses less digits than its factorization.

39977313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21063.

The product of its digits is 107163, while the sum is 42.

The square root of 39977313 is about 6322.7615011164. The cubic root of 39977313 is about 341.9305200670.

The spelling of 39977313 in words is "thirty-nine million, nine hundred seventy-seven thousand, three hundred thirteen".