73959997 has 2 divisors, whose sum is σ = 73959998. Its totient is φ = 73959996.

The previous prime is 73959971. The next prime is 73960057. The reversal of 73959997 is 79995937.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56160036 + 17799961 = 7494^2 + 4219^2 .

It is a cyclic number.

It is not a de Polignac number, because 73959997 - 2⁷ = 73959869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73959797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36979998 + 36979999.

It is an arithmetic number, because the mean of its divisors is an integer number (36979999).

Almost surely, 2^73959997 is an apocalyptic number.

It is an amenable number.

73959997 is a deficient number, since it is larger than the sum of its proper divisors (1).

73959997 is an equidigital number, since it uses as much as digits as its factorization.

73959997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4822335, while the sum is 58.

The square root of 73959997 is about 8599.9998255814. Note that the first 3 decimals coincide. The cubic root of 73959997 is about 419.7579803695.

The spelling of 73959997 in words is "seventy-three million, nine hundred fifty-nine thousand, nine hundred ninety-seven".