61169898 has 8 divisors (see below), whose sum is σ = 122339808. Its totient is φ = 20389964.

The previous prime is 61169887. The next prime is 61169923. The reversal of 61169898 is 89896116.

61169898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

61169898 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5097486 + ... + 5097497.

It is an arithmetic number, because the mean of its divisors is an integer number (15292476).

Almost surely, 2^61169898 is an apocalyptic number.

61169898 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61169898 is a wasteful number, since it uses less digits than its factorization.

61169898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10194988.

The product of its digits is 186624, while the sum is 48.

The square root of 61169898 is about 7821.1187179329. The cubic root of 61169898 is about 394.0148456533.

The spelling of 61169898 in words is "sixty-one million, one hundred sixty-nine thousand, eight hundred ninety-eight".