86219156 has 6 divisors (see below), whose sum is σ = 150883530. Its totient is φ = 43109576.

The previous prime is 86219149. The next prime is 86219167. The reversal of 86219156 is 65191268.

It can be written as a sum of positive squares in only one way, i.e., 78039556 + 8179600 = 8834^2 + 2860^2 .

It is a super-2 number, since 2×86219156² = 14867485722704672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10777391 + ... + 10777398.

It is an arithmetic number, because the mean of its divisors is an integer number (25147255).

Almost surely, 2^86219156 is an apocalyptic number.

It is an amenable number.

86219156 is a deficient number, since it is larger than the sum of its proper divisors (64664374).

86219156 is a wasteful number, since it uses less digits than its factorization.

86219156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21554793 (or 21554791 counting only the distinct ones).

The product of its digits is 25920, while the sum is 38.

The square root of 86219156 is about 9285.4270768770. The cubic root of 86219156 is about 441.7751222599.

The spelling of 86219156 in words is "eighty-six million, two hundred nineteen thousand, one hundred fifty-six".