88345921 has 4 divisors (see below), whose sum is σ = 92187072. Its totient is φ = 84504772.

The previous prime is 88345897. The next prime is 88345927. The reversal of 88345921 is 12954388.

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 88345921 - 2⁷ = 88345793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88345927) 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, 1920541 + ... + 1920586.

It is an arithmetic number, because the mean of its divisors is an integer number (23046768).

Almost surely, 2^88345921 is an apocalyptic number.

It is an amenable number.

88345921 is a deficient number, since it is larger than the sum of its proper divisors (3841151).

88345921 is a wasteful number, since it uses less digits than its factorization.

88345921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3841150.

The product of its digits is 69120, while the sum is 40.

The square root of 88345921 is about 9399.2510871877. The cubic root of 88345921 is about 445.3780753604.

The spelling of 88345921 in words is "eighty-eight million, three hundred forty-five thousand, nine hundred twenty-one".