61004872 has 32 divisors (see below), whose sum is σ = 118195200. Its totient is φ = 29501824.

The previous prime is 61004863. The next prime is 61004899. The reversal of 61004872 is 27840016.

It is a self number, because there is not a number n which added to its sum of digits gives 61004872.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32553 + ... + 34375.

It is an arithmetic number, because the mean of its divisors is an integer number (3693600).

Almost surely, 2^61004872 is an apocalyptic number.

It is an amenable number.

61004872 is a deficient number, since it is larger than the sum of its proper divisors (57190328).

61004872 is a wasteful number, since it uses less digits than its factorization.

61004872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965 (or 1961 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 61004872 is about 7810.5615675187. The cubic root of 61004872 is about 393.6601981483.

Adding to 61004872 its reverse (27840016), we get a palindrome (88844888).

The spelling of 61004872 in words is "sixty-one million, four thousand, eight hundred seventy-two".