73642713 has 4 divisors (see below), whose sum is σ = 98190288. Its totient is φ = 49095140.

The previous prime is 73642661. The next prime is 73642717. The reversal of 73642713 is 31724637.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 73642713 - 2⁶ = 73642649 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (73642717) 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, 12273783 + ... + 12273788.

It is an arithmetic number, because the mean of its divisors is an integer number (24547572).

Almost surely, 2^73642713 is an apocalyptic number.

It is an amenable number.

73642713 is a deficient number, since it is larger than the sum of its proper divisors (24547575).

73642713 is a wasteful number, since it uses less digits than its factorization.

73642713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24547574.

The product of its digits is 21168, while the sum is 33.

The square root of 73642713 is about 8581.5332546113. The cubic root of 73642713 is about 419.1568743664.

The spelling of 73642713 in words is "seventy-three million, six hundred forty-two thousand, seven hundred thirteen".