86072261 has 24 divisors (see below), whose sum is σ = 103101600. Its totient is φ = 71517600.

The previous prime is 86072257. The next prime is 86072269. The reversal of 86072261 is 16227068.

It is not a de Polignac number, because 86072261 - 2² = 86072257 is a prime.

It is a super-2 number, since 2×86072261² = 14816868227304242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86072269) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 66026 + ... + 67316.

It is an arithmetic number, because the mean of its divisors is an integer number (4295900).

Almost surely, 2^86072261 is an apocalyptic number.

It is an amenable number.

86072261 is a deficient number, since it is larger than the sum of its proper divisors (17029339).

86072261 is a wasteful number, since it uses less digits than its factorization.

86072261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361 (or 1350 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 86072261 is about 9277.5137294428. The cubic root of 86072261 is about 441.5240897013.

The spelling of 86072261 in words is "eighty-six million, seventy-two thousand, two hundred sixty-one".