99147899 has 4 divisors (see below), whose sum is σ = 100342536. Its totient is φ = 97953264.

The previous prime is 99147887. The next prime is 99147913. The reversal of 99147899 is 99874199.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99147899 - 2⁴ = 99147883 is a prime.

It is a super-2 number, since 2×99147899² = 19660611752228402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99141899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 597194 + ... + 597359.

It is an arithmetic number, because the mean of its divisors is an integer number (25085634).

Almost surely, 2^99147899 is an apocalyptic number.

99147899 is a deficient number, since it is larger than the sum of its proper divisors (1194637).

99147899 is a wasteful number, since it uses less digits than its factorization.

99147899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194636.

The product of its digits is 1469664, while the sum is 56.

The square root of 99147899 is about 9957.3038017327. The cubic root of 99147899 is about 462.8367534303.

The spelling of 99147899 in words is "ninety-nine million, one hundred forty-seven thousand, eight hundred ninety-nine".