39972301 has 2 divisors, whose sum is σ = 39972302. Its totient is φ = 39972300.

The previous prime is 39972293. The next prime is 39972319. The reversal of 39972301 is 10327993.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30791401 + 9180900 = 5549^2 + 3030^2 .

It is a cyclic number.

It is not a de Polignac number, because 39972301 - 2³ = 39972293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39972601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19986150 + 19986151.

It is an arithmetic number, because the mean of its divisors is an integer number (19986151).

Almost surely, 2^39972301 is an apocalyptic number.

It is an amenable number.

39972301 is a deficient number, since it is larger than the sum of its proper divisors (1).

39972301 is an equidigital number, since it uses as much as digits as its factorization.

39972301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 39972301 is about 6322.3651428876. The cubic root of 39972301 is about 341.9162300672.

The spelling of 39972301 in words is "thirty-nine million, nine hundred seventy-two thousand, three hundred one".