61082860 has 24 divisors (see below), whose sum is σ = 128431296. Its totient is φ = 24403200.

The previous prime is 61082849. The next prime is 61082863. The reversal of 61082860 is 6828016.

It is a super-2 number, since 2×61082860² = 7462231571559200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61082863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22749 + ... + 25291.

It is an arithmetic number, because the mean of its divisors is an integer number (5351304).

Almost surely, 2^61082860 is an apocalyptic number.

It is an amenable number.

61082860 is an abundant number, since it is smaller than the sum of its proper divisors (67348436).

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

61082860 is a wasteful number, since it uses less digits than its factorization.

61082860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3753 (or 3751 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 61082860 is about 7815.5524436856. The cubic root of 61082860 is about 393.8278770964.

The spelling of 61082860 in words is "sixty-one million, eighty-two thousand, eight hundred sixty".