86225661 has 8 divisors (see below), whose sum is σ = 127741760. Its totient is φ = 57483756.

The previous prime is 86225653. The next prime is 86225687. The reversal of 86225661 is 16652268.

It is not a de Polignac number, because 86225661 - 2³ = 86225653 is a prime.

It is a super-2 number, since 2×86225661² = 14869729229773842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86225861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1596745 + ... + 1596798.

It is an arithmetic number, because the mean of its divisors is an integer number (15967720).

Almost surely, 2^86225661 is an apocalyptic number.

It is an amenable number.

86225661 is a deficient number, since it is larger than the sum of its proper divisors (41516099).

86225661 is a wasteful number, since it uses less digits than its factorization.

86225661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3193552 (or 3193546 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 86225661 is about 9285.7773503353. Note that the first 3 decimals coincide. The cubic root of 86225661 is about 441.7862322229.

The spelling of 86225661 in words is "eighty-six million, two hundred twenty-five thousand, six hundred sixty-one".