86725998 has 32 divisors (see below), whose sum is σ = 196830720. Its totient is φ = 28292760.

The previous prime is 86725997. The next prime is 86725999. The reversal of 86725998 is 89952768.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (86725997) and next prime (86725999).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86725997) 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, 14548 + ... + 19623.

It is an arithmetic number, because the mean of its divisors is an integer number (6150960).

Almost surely, 2^86725998 is an apocalyptic number.

86725998 is an abundant number, since it is smaller than the sum of its proper divisors (110104722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86725998 is a wasteful number, since it uses less digits than its factorization.

86725998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34229 (or 34223 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The square root of 86725998 is about 9312.6794210904. The cubic root of 86725998 is about 442.6390944515.

The spelling of 86725998 in words is "eighty-six million, seven hundred twenty-five thousand, nine hundred ninety-eight".