99742595 has 4 divisors (see below), whose sum is σ = 119691120. Its totient is φ = 79794072.

The previous prime is 99742541. The next prime is 99742613. The reversal of 99742595 is 59524799.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59524799 = 937 ⋅63527.

It is a cyclic number.

It is not a de Polignac number, because 99742595 - 2²⁰ = 98694019 is a prime.

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, 9974255 + ... + 9974264.

It is an arithmetic number, because the mean of its divisors is an integer number (29922780).

Almost surely, 2^99742595 is an apocalyptic number.

99742595 is a deficient number, since it is larger than the sum of its proper divisors (19948525).

99742595 is a wasteful number, since it uses less digits than its factorization.

99742595 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19948524.

The product of its digits is 1020600, while the sum is 50.

The square root of 99742595 is about 9987.1214571567. The cubic root of 99742595 is about 463.7602851035.

The spelling of 99742595 in words is "ninety-nine million, seven hundred forty-two thousand, five hundred ninety-five".