61885698 has 32 divisors (see below), whose sum is σ = 148899840. Its totient is φ = 16750800.

The previous prime is 61885673. The next prime is 61885711. The reversal of 61885698 is 89658816.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 61885698.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37978 + ... + 39573.

It is an arithmetic number, because the mean of its divisors is an integer number (4653120).

Almost surely, 2^61885698 is an apocalyptic number.

61885698 is an abundant number, since it is smaller than the sum of its proper divisors (87014142).

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

61885698 is a wasteful number, since it uses less digits than its factorization.

61885698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77582.

The product of its digits is 829440, while the sum is 51.

The square root of 61885698 is about 7866.7463414044. The cubic root of 61885698 is about 395.5457882687.

The spelling of 61885698 in words is "sixty-one million, eight hundred eighty-five thousand, six hundred ninety-eight".