61598871 has 24 divisors (see below), whose sum is σ = 97465680. Its totient is φ = 37314816.

The previous prime is 61598869. The next prime is 61598881. The reversal of 61598871 is 17889516.

It is not a de Polignac number, because 61598871 - 2¹ = 61598869 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61598861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2505 + ... + 11378.

It is an arithmetic number, because the mean of its divisors is an integer number (4061070).

Almost surely, 2^61598871 is an apocalyptic number.

61598871 is a deficient number, since it is larger than the sum of its proper divisors (35866809).

61598871 is a wasteful number, since it uses less digits than its factorization.

61598871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13935 (or 13932 counting only the distinct ones).

The product of its digits is 120960, while the sum is 45.

The square root of 61598871 is about 7848.4948238500. The cubic root of 61598871 is about 394.9337516413.

The spelling of 61598871 in words is "sixty-one million, five hundred ninety-eight thousand, eight hundred seventy-one".