61589412 has 72 divisors (see below), whose sum is σ = 165401600. Its totient is φ = 19268928.

The previous prime is 61589401. The next prime is 61589449. The reversal of 61589412 is 21498516.

61589412 is a `hidden beast` number, since 61 + 589 + 4 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86514 + ... + 87222.

Almost surely, 2^61589412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61589412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82700800).

61589412 is an abundant number, since it is smaller than the sum of its proper divisors (103812188).

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

61589412 is a wasteful number, since it uses less digits than its factorization.

61589412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865 (or 860 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 61589412 is about 7847.8922010945. The cubic root of 61589412 is about 394.9135355263.

It can be divided in two parts, 61589 and 412, that added together give a square (62001 = 249²).

The spelling of 61589412 in words is "sixty-one million, five hundred eighty-nine thousand, four hundred twelve".