99726478 has 8 divisors (see below), whose sum is σ = 157462920. Its totient is φ = 47238840.

The previous prime is 99726469. The next prime is 99726481. The reversal of 99726478 is 87462799.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1312153 + ... + 1312228.

It is an arithmetic number, because the mean of its divisors is an integer number (19682865).

Almost surely, 2^99726478 is an apocalyptic number.

99726478 is a deficient number, since it is larger than the sum of its proper divisors (57736442).

99726478 is a wasteful number, since it uses less digits than its factorization.

99726478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2624402.

The product of its digits is 1524096, while the sum is 52.

The square root of 99726478 is about 9986.3145354029. The cubic root of 99726478 is about 463.7353047123.

The spelling of 99726478 in words is "ninety-nine million, seven hundred twenty-six thousand, four hundred seventy-eight".