86842456 has 16 divisors (see below), whose sum is σ = 166617000. Its totient is φ = 42411264.

The previous prime is 86842433. The next prime is 86842517. The reversal of 86842456 is 65424868.

It is a super-2 number, since 2×86842456² = 15083224328223872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125881 + ... + 126568.

Almost surely, 2^86842456 is an apocalyptic number.

86842456 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is an amenable number.

86842456 is a deficient number, since it is larger than the sum of its proper divisors (79774544).

86842456 is a wasteful number, since it uses less digits than its factorization.

86842456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252498 (or 252494 counting only the distinct ones).

The product of its digits is 368640, while the sum is 43.

The square root of 86842456 is about 9318.9299814947. The cubic root of 86842456 is about 442.8371350556.

The spelling of 86842456 in words is "eighty-six million, eight hundred forty-two thousand, four hundred fifty-six".