73457013 has 16 divisors (see below), whose sum is σ = 112058496. Its totient is φ = 41928960.

The previous prime is 73456987. The next prime is 73457057. The reversal of 73457013 is 31075437.

It is a de Polignac number, because none of the positive numbers 2^k-73457013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73457063) 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, 28873 + ... + 31313.

It is an arithmetic number, because the mean of its divisors is an integer number (7003656).

Almost surely, 2^73457013 is an apocalyptic number.

It is an amenable number.

73457013 is a deficient number, since it is larger than the sum of its proper divisors (38601483).

73457013 is a wasteful number, since it uses less digits than its factorization.

73457013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3884.

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 73457013 is about 8570.7066803152. The cubic root of 73457013 is about 418.8042576758.

The spelling of 73457013 in words is "seventy-three million, four hundred fifty-seven thousand, thirteen".