88734721 has 4 divisors (see below), whose sum is σ = 88753600. Its totient is φ = 88715844.

The previous prime is 88734689. The next prime is 88734739. The reversal of 88734721 is 12743788.

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 88734721 - 2⁵ = 88734689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88734791) 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, 3820 + ... + 13858.

It is an arithmetic number, because the mean of its divisors is an integer number (22188400).

Almost surely, 2^88734721 is an apocalyptic number.

It is an amenable number.

88734721 is a deficient number, since it is larger than the sum of its proper divisors (18879).

88734721 is a wasteful number, since it uses less digits than its factorization.

88734721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18878.

The product of its digits is 75264, while the sum is 40.

The square root of 88734721 is about 9419.9108806825. The cubic root of 88734721 is about 446.0304714178.

The spelling of 88734721 in words is "eighty-eight million, seven hundred thirty-four thousand, seven hundred twenty-one".