73057645 has 16 divisors (see below), whose sum is σ = 90047232. Its totient is φ = 56871360.

The previous prime is 73057631. The next prime is 73057661. The reversal of 73057645 is 54675037.

It is not a de Polignac number, because 73057645 - 2¹¹ = 73055597 is a prime.

It is a super-3 number, since 3×73057645³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79740 + ... + 80650.

It is an arithmetic number, because the mean of its divisors is an integer number (5627952).

Almost surely, 2^73057645 is an apocalyptic number.

It is an amenable number.

73057645 is a deficient number, since it is larger than the sum of its proper divisors (16989587).

73057645 is a wasteful number, since it uses less digits than its factorization.

73057645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332.

The product of its (nonzero) digits is 88200, while the sum is 37.

The square root of 73057645 is about 8547.3764980841. The cubic root of 73057645 is about 418.0438989174.

The spelling of 73057645 in words is "seventy-three million, fifty-seven thousand, six hundred forty-five".