61086684 has 12 divisors (see below), whose sum is σ = 142535624. Its totient is φ = 20362224.

The previous prime is 61086629. The next prime is 61086713. The reversal of 61086684 is 48668016.

It is a tau number, because it is divible by the number of its divisors (12).

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, 2545267 + ... + 2545290.

Almost surely, 2^61086684 is an apocalyptic number.

It is an amenable number.

61086684 is an abundant number, since it is smaller than the sum of its proper divisors (81448940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61086684 is a wasteful number, since it uses less digits than its factorization.

61086684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5090564 (or 5090562 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 61086684 is about 7815.7970802727. The cubic root of 61086684 is about 393.8360952577.

The spelling of 61086684 in words is "sixty-one million, eighty-six thousand, six hundred eighty-four".