16972379 has 2 divisors, whose sum is σ = 16972380. Its totient is φ = 16972378.

The previous prime is 16972363. The next prime is 16972391. The reversal of 16972379 is 97327961.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (97327961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16972379 - 2⁴ = 16972363 is a prime.

It is not a weakly prime, because it can be changed into another prime (16972309) 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, 8486189 + 8486190.

It is an arithmetic number, because the mean of its divisors is an integer number (8486190).

Almost surely, 2^16972379 is an apocalyptic number.

16972379 is a deficient number, since it is larger than the sum of its proper divisors (1).

16972379 is an equidigital number, since it uses as much as digits as its factorization.

16972379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 142884, while the sum is 44.

The square root of 16972379 is about 4119.7547257088. The cubic root of 16972379 is about 256.9888259915.

The spelling of 16972379 in words is "sixteen million, nine hundred seventy-two thousand, three hundred seventy-nine".