61889598 has 24 divisors (see below), whose sum is σ = 134270136. Its totient is φ = 20602800.

The previous prime is 61889591. The next prime is 61889603. The reversal of 61889598 is 89598816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61889591) 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, 15708 + ... + 19248.

It is an arithmetic number, because the mean of its divisors is an integer number (5594589).

Almost surely, 2^61889598 is an apocalyptic number.

61889598 is an abundant number, since it is smaller than the sum of its proper divisors (72380538).

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

61889598 is a wasteful number, since it uses less digits than its factorization.

61889598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4520 (or 4517 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 54.

The square root of 61889598 is about 7866.9942163446. The cubic root of 61889598 is about 395.5540971146.

The spelling of 61889598 in words is "sixty-one million, eight hundred eighty-nine thousand, five hundred ninety-eight".