73797457 has 2 divisors, whose sum is σ = 73797458. Its totient is φ = 73797456.

The previous prime is 73797421. The next prime is 73797481. The reversal of 73797457 is 75479737.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72182016 + 1615441 = 8496^2 + 1271^2 .

It is a cyclic number.

It is not a de Polignac number, because 73797457 - 2¹⁵ = 73764689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73797457.

It is not a weakly prime, because it can be changed into another prime (73797557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36898728 + 36898729.

It is an arithmetic number, because the mean of its divisors is an integer number (36898729).

Almost surely, 2^73797457 is an apocalyptic number.

It is an amenable number.

73797457 is a deficient number, since it is larger than the sum of its proper divisors (1).

73797457 is an equidigital number, since it uses as much as digits as its factorization.

73797457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296540, while the sum is 49.

The square root of 73797457 is about 8590.5446276706. The cubic root of 73797457 is about 419.4502576969.

The spelling of 73797457 in words is "seventy-three million, seven hundred ninety-seven thousand, four hundred fifty-seven".