88031389 has 16 divisors (see below), whose sum is σ = 98496000. Its totient is φ = 78188544.

The previous prime is 88031371. The next prime is 88031393. The reversal of 88031389 is 98313088.

It is a cyclic number.

It is not a de Polignac number, because 88031389 - 2⁷ = 88031261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88031309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144724 + ... + 145330.

It is an arithmetic number, because the mean of its divisors is an integer number (6156000).

Almost surely, 2^88031389 is an apocalyptic number.

It is an amenable number.

88031389 is a deficient number, since it is larger than the sum of its proper divisors (10464611).

88031389 is a wasteful number, since it uses less digits than its factorization.

88031389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 88031389 is about 9382.5044098045. The cubic root of 88031389 is about 444.8488970628.

The spelling of 88031389 in words is "eighty-eight million, thirty-one thousand, three hundred eighty-nine".