61988498 has 16 divisors (see below), whose sum is σ = 109238976. Its totient is φ = 26009040.

The previous prime is 61988489. The next prime is 61988501. The reversal of 61988498 is 89488916.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108086 + ... + 108657.

It is an arithmetic number, because the mean of its divisors is an integer number (6827436).

Almost surely, 2^61988498 is an apocalyptic number.

61988498 is a deficient number, since it is larger than the sum of its proper divisors (47250478).

61988498 is a wasteful number, since it uses less digits than its factorization.

61988498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216769.

The product of its digits is 995328, while the sum is 53.

The square root of 61988498 is about 7873.2774624041. The cubic root of 61988498 is about 395.7646843634.

The spelling of 61988498 in words is "sixty-one million, nine hundred eighty-eight thousand, four hundred ninety-eight".