88430399 has 4 divisors (see below), whose sum is σ = 90587280. Its totient is φ = 86273520.

The previous prime is 88430393. The next prime is 88430431. The reversal of 88430399 is 99303488.

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 88430399 - 2²⁰ = 87381823 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 (88430393) 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, 1078379 + ... + 1078460.

It is an arithmetic number, because the mean of its divisors is an integer number (22646820).

Almost surely, 2^88430399 is an apocalyptic number.

88430399 is a deficient number, since it is larger than the sum of its proper divisors (2156881).

88430399 is a wasteful number, since it uses less digits than its factorization.

88430399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156880.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 88430399 is about 9403.7438820929. The cubic root of 88430399 is about 445.5199897146.

The spelling of 88430399 in words is "eighty-eight million, four hundred thirty thousand, three hundred ninety-nine".