73403057 has 16 divisors (see below), whose sum is σ = 90744192. Its totient is φ = 57818880.

The previous prime is 73403047. The next prime is 73403081. The reversal of 73403057 is 75030437.

It is not a de Polignac number, because 73403057 - 2⁴ = 73403041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73403047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20258 + ... + 23604.

It is an arithmetic number, because the mean of its divisors is an integer number (5671512).

Almost surely, 2^73403057 is an apocalyptic number.

It is an amenable number.

73403057 is a deficient number, since it is larger than the sum of its proper divisors (17341135).

73403057 is a wasteful number, since it uses less digits than its factorization.

73403057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3608.

The product of its (nonzero) digits is 8820, while the sum is 29.

The square root of 73403057 is about 8567.5584036527. The cubic root of 73403057 is about 418.7016918506.

The spelling of 73403057 in words is "seventy-three million, four hundred three thousand, fifty-seven".