61918498 has 8 divisors (see below), whose sum is σ = 93997008. Its totient is φ = 30586164.

The previous prime is 61918489. The next prime is 61918499. The reversal of 61918498 is 89481916.

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

It is not an unprimeable number, because it can be changed into a prime (61918499) 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, 186336 + ... + 186667.

It is an arithmetic number, because the mean of its divisors is an integer number (11749626).

Almost surely, 2^61918498 is an apocalyptic number.

61918498 is a deficient number, since it is larger than the sum of its proper divisors (32078510).

61918498 is a wasteful number, since it uses less digits than its factorization.

61918498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373088.

The product of its digits is 124416, while the sum is 46.

The square root of 61918498 is about 7868.8307898950. The cubic root of 61918498 is about 395.6156569183.

The spelling of 61918498 in words is "sixty-one million, nine hundred eighteen thousand, four hundred ninety-eight".