86319388 has 12 divisors (see below), whose sum is σ = 151933320. Its totient is φ = 42909872.

The previous prime is 86319379. The next prime is 86319397. The reversal of 86319388 is 88391368.

It is an interprime number because it is at equal distance from previous prime (86319379) and next prime (86319397).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61678 + ... + 63061.

It is an arithmetic number, because the mean of its divisors is an integer number (12661110).

Almost surely, 2^86319388 is an apocalyptic number.

It is an amenable number.

86319388 is a deficient number, since it is larger than the sum of its proper divisors (65613932).

86319388 is a wasteful number, since it uses less digits than its factorization.

86319388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124916 (or 124914 counting only the distinct ones).

The product of its digits is 248832, while the sum is 46.

The square root of 86319388 is about 9290.8227838012. The cubic root of 86319388 is about 441.9462476350.

The spelling of 86319388 in words is "eighty-six million, three hundred nineteen thousand, three hundred eighty-eight".