99347409 has 24 divisors (see below), whose sum is σ = 172635840. Its totient is φ = 53781408.

The previous prime is 99347383. The next prime is 99347411. The reversal of 99347409 is 90474399.

It is not a de Polignac number, because 99347409 - 2⁵ = 99347377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99347449) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40302 + ... + 42695.

It is an arithmetic number, because the mean of its divisors is an integer number (7193160).

Almost surely, 2^99347409 is an apocalyptic number.

It is an amenable number.

99347409 is a deficient number, since it is larger than the sum of its proper divisors (73288431).

99347409 is a wasteful number, since it uses less digits than its factorization.

99347409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83029 (or 83026 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 99347409 is about 9967.3170412102. The cubic root of 99347409 is about 463.1469926232.

The spelling of 99347409 in words is "ninety-nine million, three hundred forty-seven thousand, four hundred nine".