73272863 has 4 divisors (see below), whose sum is σ = 75060048. Its totient is φ = 71485680.

The previous prime is 73272853. The next prime is 73272869. The reversal of 73272863 is 36827237.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 73272863 - 2⁶ = 73272799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73272869) 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, 893531 + ... + 893612.

It is an arithmetic number, because the mean of its divisors is an integer number (18765012).

Almost surely, 2^73272863 is an apocalyptic number.

73272863 is a deficient number, since it is larger than the sum of its proper divisors (1787185).

73272863 is a wasteful number, since it uses less digits than its factorization.

73272863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787184.

The product of its digits is 84672, while the sum is 38.

The square root of 73272863 is about 8559.9569508263. The cubic root of 73272863 is about 418.4539968570.

The spelling of 73272863 in words is "seventy-three million, two hundred seventy-two thousand, eight hundred sixty-three".