86685626 has 4 divisors (see below), whose sum is σ = 130028442. Its totient is φ = 43342812.

The previous prime is 86685593. The next prime is 86685631. The reversal of 86685626 is 62658668.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 62173225 + 24512401 = 7885^2 + 4951^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21671405 + ... + 21671408.

Almost surely, 2^86685626 is an apocalyptic number.

86685626 is a deficient number, since it is larger than the sum of its proper divisors (43342816).

86685626 is a wasteful number, since it uses less digits than its factorization.

86685626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43342815.

The product of its digits is 829440, while the sum is 47.

The square root of 86685626 is about 9310.5115863738. The cubic root of 86685626 is about 442.5703991752.

The spelling of 86685626 in words is "eighty-six million, six hundred eighty-five thousand, six hundred twenty-six".