61013604 has 24 divisors (see below), whose sum is σ = 143045728. Its totient is φ = 20240640.

The previous prime is 61013591. The next prime is 61013609. The reversal of 61013604 is 40631016.

It is a super-3 number, since 3×61013604³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (61013609) 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, 9517 + ... + 14580.

Almost surely, 2^61013604 is an apocalyptic number.

It is an amenable number.

61013604 is an abundant number, since it is smaller than the sum of its proper divisors (82032124).

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

61013604 is a wasteful number, since it uses less digits than its factorization.

61013604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24315 (or 24313 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 61013604 is about 7811.1205342127. The cubic root of 61013604 is about 393.6789795819.

The spelling of 61013604 in words is "sixty-one million, thirteen thousand, six hundred four".