61481798 has 16 divisors (see below), whose sum is σ = 109032480. Its totient is φ = 25440576.

The previous prime is 61481789. The next prime is 61481803. The reversal of 61481798 is 89718416.

It is a super-2 number, since 2×61481798² = 7560022970625608, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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, 75311 + ... + 76122.

It is an arithmetic number, because the mean of its divisors is an integer number (6814530).

Almost surely, 2^61481798 is an apocalyptic number.

61481798 is a deficient number, since it is larger than the sum of its proper divisors (47550682).

61481798 is a wasteful number, since it uses less digits than its factorization.

61481798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151471.

The product of its digits is 96768, while the sum is 44.

The square root of 61481798 is about 7841.0329676644. The cubic root of 61481798 is about 394.6833931474.

The spelling of 61481798 in words is "sixty-one million, four hundred eighty-one thousand, seven hundred ninety-eight".