73017979 has 2 divisors, whose sum is σ = 73017980. Its totient is φ = 73017978.

The previous prime is 73017961. The next prime is 73017991. The reversal of 73017979 is 97971037.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73017979 - 2⁵ = 73017947 is a prime.

It is not a weakly prime, because it can be changed into another prime (73017929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36508989 + 36508990.

It is an arithmetic number, because the mean of its divisors is an integer number (36508990).

Almost surely, 2^73017979 is an apocalyptic number.

73017979 is a deficient number, since it is larger than the sum of its proper divisors (1).

73017979 is an equidigital number, since it uses as much as digits as its factorization.

73017979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 83349, while the sum is 43.

The square root of 73017979 is about 8545.0558219359. The cubic root of 73017979 is about 417.9682274790.

The spelling of 73017979 in words is "seventy-three million, seventeen thousand, nine hundred seventy-nine".