39432997 has 2 divisors, whose sum is σ = 39432998. Its totient is φ = 39432996.

The previous prime is 39432989. The next prime is 39433003. The reversal of 39432997 is 79923493.

39432997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36590401 + 2842596 = 6049^2 + 1686^2 .

It is a cyclic number.

It is not a de Polignac number, because 39432997 - 2³ = 39432989 is a prime.

It is a super-2 number, since 2×39432997² = 3109922504804018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39432977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19716498 + 19716499.

It is an arithmetic number, because the mean of its divisors is an integer number (19716499).

Almost surely, 2^39432997 is an apocalyptic number.

It is an amenable number.

39432997 is a deficient number, since it is larger than the sum of its proper divisors (1).

39432997 is an equidigital number, since it uses as much as digits as its factorization.

39432997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 367416, while the sum is 46.

The square root of 39432997 is about 6279.5698101064. The cubic root of 39432997 is about 340.3715574759.

The spelling of 39432997 in words is "thirty-nine million, four hundred thirty-two thousand, nine hundred ninety-seven".