73324457 has 4 divisors (see below), whose sum is σ = 73973460. Its totient is φ = 72675456.

The previous prime is 73324453. The next prime is 73324481. The reversal of 73324457 is 75442337.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75442337 = 41 ⋅1840057.

It can be written as a sum of positive squares in 2 ways, for example, as 17732521 + 55591936 = 4211^2 + 7456^2 .

It is a cyclic number.

It is not a de Polignac number, because 73324457 - 2² = 73324453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73324453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324332 + ... + 324557.

It is an arithmetic number, because the mean of its divisors is an integer number (18493365).

Almost surely, 2^73324457 is an apocalyptic number.

It is an amenable number.

73324457 is a deficient number, since it is larger than the sum of its proper divisors (649003).

73324457 is a wasteful number, since it uses less digits than its factorization.

73324457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649002.

The product of its digits is 70560, while the sum is 35.

The square root of 73324457 is about 8562.9701038833. The cubic root of 73324457 is about 418.5521898726.

The spelling of 73324457 in words is "seventy-three million, three hundred twenty-four thousand, four hundred fifty-seven".