61486688 has 24 divisors (see below), whose sum is σ = 128173752. Its totient is φ = 28934656.

The previous prime is 61486687. The next prime is 61486703. The reversal of 61486688 is 88668416.

It is a super-2 number, since 2×61486688² = 7561225602418688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61486687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55970 + ... + 57057.

It is an arithmetic number, because the mean of its divisors is an integer number (5340573).

Almost surely, 2^61486688 is an apocalyptic number.

61486688 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

61486688 is an abundant number, since it is smaller than the sum of its proper divisors (66687064).

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

61486688 is a wasteful number, since it uses less digits than its factorization.

61486688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113054 (or 113046 counting only the distinct ones).

The product of its digits is 442368, while the sum is 47.

The square root of 61486688 is about 7841.3447826250. The cubic root of 61486688 is about 394.6938566812.

The spelling of 61486688 in words is "sixty-one million, four hundred eighty-six thousand, six hundred eighty-eight".