61593859 has 4 divisors (see below), whose sum is σ = 61716816. Its totient is φ = 61470904.

The previous prime is 61593853. The next prime is 61593881. The reversal of 61593859 is 95839516.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61593859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61593853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60724 + ... + 61729.

It is an arithmetic number, because the mean of its divisors is an integer number (15429204).

Almost surely, 2^61593859 is an apocalyptic number.

61593859 is a deficient number, since it is larger than the sum of its proper divisors (122957).

61593859 is a wasteful number, since it uses less digits than its factorization.

61593859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122956.

The product of its digits is 291600, while the sum is 46.

The square root of 61593859 is about 7848.1755204633. The cubic root of 61593859 is about 394.9230400724.

The spelling of 61593859 in words is "sixty-one million, five hundred ninety-three thousand, eight hundred fifty-nine".