61589994 has 32 divisors (see below), whose sum is σ = 128134656. Its totient is φ = 19714560.

The previous prime is 61589993. The next prime is 61589999. The reversal of 61589994 is 49998516.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61589993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24274 + ... + 26690.

It is an arithmetic number, because the mean of its divisors is an integer number (4004208).

Almost surely, 2^61589994 is an apocalyptic number.

61589994 is an abundant number, since it is smaller than the sum of its proper divisors (66544662).

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

61589994 is a wasteful number, since it uses less digits than its factorization.

61589994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2590.

The product of its digits is 699840, while the sum is 51.

The square root of 61589994 is about 7847.9292810269. The cubic root of 61589994 is about 394.9147794574.

It can be divided in two parts, 615 and 89994, that added together give a palindrome (90609).

The spelling of 61589994 in words is "sixty-one million, five hundred eighty-nine thousand, nine hundred ninety-four".