39924293 has 2 divisors, whose sum is σ = 39924294. Its totient is φ = 39924292.

The previous prime is 39924281. The next prime is 39924299. The reversal of 39924293 is 39242993.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33200644 + 6723649 = 5762^2 + 2593^2 .

It is a cyclic number.

It is not a de Polignac number, because 39924293 - 2⁶ = 39924229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39924293.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39924299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19962146 + 19962147.

It is an arithmetic number, because the mean of its divisors is an integer number (19962147).

Almost surely, 2^39924293 is an apocalyptic number.

It is an amenable number.

39924293 is a deficient number, since it is larger than the sum of its proper divisors (1).

39924293 is an equidigital number, since it uses as much as digits as its factorization.

39924293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 104976, while the sum is 41.

The square root of 39924293 is about 6318.5673217906. The cubic root of 39924293 is about 341.7792911546.

The spelling of 39924293 in words is "thirty-nine million, nine hundred twenty-four thousand, two hundred ninety-three".