86161772 has 24 divisors (see below), whose sum is σ = 162419712. Its totient is φ = 39877200.

The previous prime is 86161739. The next prime is 86161807. The reversal of 86161772 is 27716168.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12254 + ... + 17957.

It is an arithmetic number, because the mean of its divisors is an integer number (6767488).

Almost surely, 2^86161772 is an apocalyptic number.

It is an amenable number.

86161772 is a deficient number, since it is larger than the sum of its proper divisors (76257940).

86161772 is a wasteful number, since it uses less digits than its factorization.

86161772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30269 (or 30267 counting only the distinct ones).

The product of its digits is 28224, while the sum is 38.

The square root of 86161772 is about 9282.3365592937. The cubic root of 86161772 is about 441.6770912614.

The spelling of 86161772 in words is "eighty-six million, one hundred sixty-one thousand, seven hundred seventy-two".