61315684 has 12 divisors (see below), whose sum is σ = 107466604. Its totient is φ = 30610944.

The previous prime is 61315673. The next prime is 61315711. The reversal of 61315684 is 48651316.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 39413284 + 21902400 = 6278^2 + 4680^2 .

It is a super-2 number, since 2×61315684² = 7519226208775712, which contains 22 as substring.

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, 8697 + ... + 14080.

Almost surely, 2^61315684 is an apocalyptic number.

It is an amenable number.

61315684 is a deficient number, since it is larger than the sum of its proper divisors (46150920).

61315684 is a wasteful number, since it uses less digits than its factorization.

61315684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23454 (or 23452 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 61315684 is about 7830.4331936362. The cubic root of 61315684 is about 394.3276153697.

The spelling of 61315684 in words is "sixty-one million, three hundred fifteen thousand, six hundred eighty-four".