88405089 has 4 divisors (see below), whose sum is σ = 117873456. Its totient is φ = 58936724.

The previous prime is 88405067. The next prime is 88405111. The reversal of 88405089 is 98050488.

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 an interprime number because it is at equal distance from previous prime (88405067) and next prime (88405111).

It is a cyclic number.

It is not a de Polignac number, because 88405089 - 2¹⁵ = 88372321 is a prime.

It is a super-2 number, since 2×88405089² = 15630919522195842, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 88405089.

It is not an unprimeable number, because it can be changed into a prime (88405039) 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, 14734179 + ... + 14734184.

It is an arithmetic number, because the mean of its divisors is an integer number (29468364).

Almost surely, 2^88405089 is an apocalyptic number.

It is an amenable number.

88405089 is a deficient number, since it is larger than the sum of its proper divisors (29468367).

88405089 is a wasteful number, since it uses less digits than its factorization.

88405089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29468366.

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 88405089 is about 9402.3980451798. The cubic root of 88405089 is about 445.4774810033.

The spelling of 88405089 in words is "eighty-eight million, four hundred five thousand, eighty-nine".