61993594 has 24 divisors (see below), whose sum is σ = 106626780. Its totient is φ = 26926848.

The previous prime is 61993549. The next prime is 61993597. The reversal of 61993594 is 49539916.

It can be written as a sum of positive squares in 6 ways, for example, as 15249025 + 46744569 = 3905^2 + 6837^2 .

It is not an unprimeable number, because it can be changed into a prime (61993597) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 352 + ... + 11140.

Almost surely, 2^61993594 is an apocalyptic number.

61993594 is a deficient number, since it is larger than the sum of its proper divisors (44633186).

61993594 is a wasteful number, since it uses less digits than its factorization.

61993594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10834 (or 10821 counting only the distinct ones).

The product of its digits is 262440, while the sum is 46.

The square root of 61993594 is about 7873.6010820971. The cubic root of 61993594 is about 395.7755291794.

The spelling of 61993594 in words is "sixty-one million, nine hundred ninety-three thousand, five hundred ninety-four".