99913247 has 8 divisors (see below), whose sum is σ = 114315936. Its totient is φ = 85542912.

The previous prime is 99913243. The next prime is 99913337. The reversal of 99913247 is 74231999.

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

It is not a de Polignac number, because 99913247 - 2² = 99913243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99913198 and 99913207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99913241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1058 + ... + 14175.

It is an arithmetic number, because the mean of its divisors is an integer number (14289492).

Almost surely, 2^99913247 is an apocalyptic number.

99913247 is a deficient number, since it is larger than the sum of its proper divisors (14402689).

99913247 is a wasteful number, since it uses less digits than its factorization.

99913247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16177.

The product of its digits is 122472, while the sum is 44.

The square root of 99913247 is about 9995.6614088313. The cubic root of 99913247 is about 464.0246206094.

The spelling of 99913247 in words is "ninety-nine million, nine hundred thirteen thousand, two hundred forty-seven".