73397497 has 2 divisors, whose sum is σ = 73397498. Its totient is φ = 73397496.

The previous prime is 73397479. The next prime is 73397507. The reversal of 73397497 is 79479337.

Together with previous prime (73397479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38303721 + 35093776 = 6189^2 + 5924^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73397497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73397497.

It is not a weakly prime, because it can be changed into another prime (73397447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36698748 + 36698749.

It is an arithmetic number, because the mean of its divisors is an integer number (36698749).

Almost surely, 2^73397497 is an apocalyptic number.

It is an amenable number.

73397497 is a deficient number, since it is larger than the sum of its proper divisors (1).

73397497 is an equidigital number, since it uses as much as digits as its factorization.

73397497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1000188, while the sum is 49.

The square root of 73397497 is about 8567.2339176656. The cubic root of 73397497 is about 418.6911199013.

The spelling of 73397497 in words is "seventy-three million, three hundred ninety-seven thousand, four hundred ninety-seven".