39960331 has 2 divisors, whose sum is σ = 39960332. Its totient is φ = 39960330.

The previous prime is 39960329. The next prime is 39960337. The reversal of 39960331 is 13306993.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 39960331 - 2¹ = 39960329 is a prime.

It is a super-2 number, since 2×39960331² = 3193656107259122, which contains 22 as substring.

Together with 39960329, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (39960337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19980165 + 19980166.

It is an arithmetic number, because the mean of its divisors is an integer number (19980166).

Almost surely, 2^39960331 is an apocalyptic number.

39960331 is a deficient number, since it is larger than the sum of its proper divisors (1).

39960331 is an equidigital number, since it uses as much as digits as its factorization.

39960331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13122, while the sum is 34.

The square root of 39960331 is about 6321.4184325988. The cubic root of 39960331 is about 341.8820968818.

The spelling of 39960331 in words is "thirty-nine million, nine hundred sixty thousand, three hundred thirty-one".