73628457 has 16 divisors (see below), whose sum is σ = 113735040. Its totient is φ = 41496192.

The previous prime is 73628453. The next prime is 73628459. The reversal of 73628457 is 75482637.

It is not a de Polignac number, because 73628457 - 2² = 73628453 is a prime.

It is a super-2 number, since 2×73628457² = 10842299360401698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (73628453) 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, 22482 + ... + 25547.

It is an arithmetic number, because the mean of its divisors is an integer number (7108440).

Almost surely, 2^73628457 is an apocalyptic number.

It is an amenable number.

73628457 is a deficient number, since it is larger than the sum of its proper divisors (40106583).

73628457 is a wasteful number, since it uses less digits than its factorization.

73628457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48112.

The product of its digits is 282240, while the sum is 42.

The square root of 73628457 is about 8580.7025936109. The cubic root of 73628457 is about 419.1298253628.

The spelling of 73628457 in words is "seventy-three million, six hundred twenty-eight thousand, four hundred fifty-seven".