23729898 has 32 divisors (see below), whose sum is σ = 51186240. Its totient is φ = 7309440.

The previous prime is 23729873. The next prime is 23729903. The reversal of 23729898 is 89892732.

It is a happy 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 15 ways as a sum of consecutive naturals, for example, 2136 + ... + 7212.

It is an arithmetic number, because the mean of its divisors is an integer number (1599570).

Almost surely, 2^23729898 is an apocalyptic number.

23729898 is an abundant number, since it is smaller than the sum of its proper divisors (27456342).

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

23729898 is a wasteful number, since it uses less digits than its factorization.

23729898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5142.

The product of its digits is 435456, while the sum is 48.

The square root of 23729898 is about 4871.3343141279. The cubic root of 23729898 is about 287.3637332813.

It can be divided in two parts, 237 and 29898, that added together give a triangular number (30135 = T₂₄₅).

The spelling of 23729898 in words is "twenty-three million, seven hundred twenty-nine thousand, eight hundred ninety-eight".