99194387 has 4 divisors (see below), whose sum is σ = 99216480. Its totient is φ = 99172296.

The previous prime is 99194363. The next prime is 99194419. The reversal of 99194387 is 78349199.

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 99194387 - 2¹⁴ = 99178003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99194317) 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, 1643 + ... + 14180.

It is an arithmetic number, because the mean of its divisors is an integer number (24804120).

Almost surely, 2^99194387 is an apocalyptic number.

99194387 is a deficient number, since it is larger than the sum of its proper divisors (22093).

99194387 is a wasteful number, since it uses less digits than its factorization.

99194387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22092.

The product of its digits is 489888, while the sum is 50.

The square root of 99194387 is about 9959.6378950241. The cubic root of 99194387 is about 462.9090796999.

The spelling of 99194387 in words is "ninety-nine million, one hundred ninety-four thousand, three hundred eighty-seven".