61723098 has 24 divisors (see below), whose sum is σ = 134316468. Its totient is φ = 20484672.

The previous prime is 61723097. The next prime is 61723117. The reversal of 61723098 is 89032716.

61723098 is a `hidden beast` number, since 617 + 2 + 30 + 9 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 57198969 + 4524129 = 7563^2 + 2127^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (61723091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3165 + ... + 11552.

Almost surely, 2^61723098 is an apocalyptic number.

61723098 is an abundant number, since it is smaller than the sum of its proper divisors (72593370).

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

61723098 is a wasteful number, since it uses less digits than its factorization.

61723098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14958 (or 14955 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 61723098 is about 7856.4049030075. The cubic root of 61723098 is about 395.1990621922.

The spelling of 61723098 in words is "sixty-one million, seven hundred twenty-three thousand, ninety-eight".