86981372 has 12 divisors (see below), whose sum is σ = 152410776. Its totient is φ = 43435440.

The previous prime is 86981371. The next prime is 86981387. The reversal of 86981372 is 27318968.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86981371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10163 + ... + 16650.

It is an arithmetic number, because the mean of its divisors is an integer number (12700898).

Almost surely, 2^86981372 is an apocalyptic number.

It is an amenable number.

86981372 is a deficient number, since it is larger than the sum of its proper divisors (65429404).

86981372 is a wasteful number, since it uses less digits than its factorization.

86981372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27628 (or 27626 counting only the distinct ones).

The product of its digits is 145152, while the sum is 44.

The square root of 86981372 is about 9326.3804340162. The cubic root of 86981372 is about 443.0731347951.

The spelling of 86981372 in words is "eighty-six million, nine hundred eighty-one thousand, three hundred seventy-two".