88789399 has 4 divisors (see below), whose sum is σ = 89651536. Its totient is φ = 87927264.

The previous prime is 88789373. The next prime is 88789409. The reversal of 88789399 is 99398788.

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 88789399 - 2¹³ = 88781207 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 (88789199) 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, 430914 + ... + 431119.

It is an arithmetic number, because the mean of its divisors is an integer number (22412884).

Almost surely, 2^88789399 is an apocalyptic number.

88789399 is a deficient number, since it is larger than the sum of its proper divisors (862137).

88789399 is a wasteful number, since it uses less digits than its factorization.

88789399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862136.

The product of its digits is 7838208, while the sum is 61.

The square root of 88789399 is about 9422.8126904868. The cubic root of 88789399 is about 446.1220667042.

The spelling of 88789399 in words is "eighty-eight million, seven hundred eighty-nine thousand, three hundred ninety-nine".