39192997 has 2 divisors, whose sum is σ = 39192998. Its totient is φ = 39192996.

The previous prime is 39192983. The next prime is 39193001. The reversal of 39192997 is 79929193.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34035556 + 5157441 = 5834^2 + 2271^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39192997 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39192997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39198997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19596498 + 19596499.

It is an arithmetic number, because the mean of its divisors is an integer number (19596499).

Almost surely, 2^39192997 is an apocalyptic number.

It is an amenable number.

39192997 is a deficient number, since it is larger than the sum of its proper divisors (1).

39192997 is an equidigital number, since it uses as much as digits as its factorization.

39192997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 275562, while the sum is 49.

The square root of 39192997 is about 6260.4310554466. The cubic root of 39192997 is about 339.6796203486.

The spelling of 39192997 in words is "thirty-nine million, one hundred ninety-two thousand, nine hundred ninety-seven".