88297921 has 4 divisors (see below), whose sum is σ = 92945200. Its totient is φ = 83650644.

The previous prime is 88297919. The next prime is 88297939. The reversal of 88297921 is 12979288.

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 88297921 - 2¹ = 88297919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88297901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2323611 + ... + 2323648.

It is an arithmetic number, because the mean of its divisors is an integer number (23236300).

Almost surely, 2^88297921 is an apocalyptic number.

It is an amenable number.

88297921 is a deficient number, since it is larger than the sum of its proper divisors (4647279).

88297921 is a wasteful number, since it uses less digits than its factorization.

88297921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4647278.

The product of its digits is 145152, while the sum is 46.

The square root of 88297921 is about 9396.6973453443. The cubic root of 88297921 is about 445.2973999870.

The spelling of 88297921 in words is "eighty-eight million, two hundred ninety-seven thousand, nine hundred twenty-one".