86954985 has 32 divisors (see below), whose sum is σ = 166481280. Its totient is φ = 42807744.

The previous prime is 86954981. The next prime is 86954993. The reversal of 86954985 is 58945968.

It is a happy number.

It is not a de Polignac number, because 86954985 - 2² = 86954981 is a prime.

It is a super-2 number, since 2×86954985² = 15122338832700450, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (86954981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23019 + ... + 26528.

It is an arithmetic number, because the mean of its divisors is an integer number (5202540).

Almost surely, 2^86954985 is an apocalyptic number.

It is an amenable number.

86954985 is a deficient number, since it is larger than the sum of its proper divisors (79526295).

86954985 is a wasteful number, since it uses less digits than its factorization.

86954985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49574 (or 49568 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 54.

The square root of 86954985 is about 9324.9656835830. The cubic root of 86954985 is about 443.0283261463.

The spelling of 86954985 in words is "eighty-six million, nine hundred fifty-four thousand, nine hundred eighty-five".