749797457 has 2 divisors, whose sum is σ = 749797458. Its totient is φ = 749797456.

The previous prime is 749797409. The next prime is 749797507. The reversal of 749797457 is 754797947.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 745508416 + 4289041 = 27304^2 + 2071^2 .

It is a cyclic number.

It is not a de Polignac number, because 749797457 - 2²⁴ = 733020241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 749797396 and 749797405.

It is not a weakly prime, because it can be changed into another prime (749796457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374898728 + 374898729.

It is an arithmetic number, because the mean of its divisors is an integer number (374898729).

Almost surely, 2^749797457 is an apocalyptic number.

It is an amenable number.

749797457 is a deficient number, since it is larger than the sum of its proper divisors (1).

749797457 is an equidigital number, since it uses as much as digits as its factorization.

749797457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15558480, while the sum is 59.

The square root of 749797457 is about 27382.4297132303. The cubic root of 749797457 is about 908.4785012622.

The spelling of 749797457 in words is "seven hundred forty-nine million, seven hundred ninety-seven thousand, four hundred fifty-seven".