99071845 has 8 divisors (see below), whose sum is σ = 119087640. Its totient is φ = 79123200.

The previous prime is 99071839. The next prime is 99071851. The reversal of 99071845 is 54817099.

It is an interprime number because it is at equal distance from previous prime (99071839) and next prime (99071851).

It can be written as a sum of positive squares in 4 ways, for example, as 18395521 + 80676324 = 4289^2 + 8982^2 .

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

It is not a de Polignac number, because 99071845 - 2⁹ = 99071333 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13480 + ... + 19489.

It is an arithmetic number, because the mean of its divisors is an integer number (14885955).

Almost surely, 2^99071845 is an apocalyptic number.

It is an amenable number.

99071845 is a deficient number, since it is larger than the sum of its proper divisors (20015795).

99071845 is a wasteful number, since it uses less digits than its factorization.

99071845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33575.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 99071845 is about 9953.4840633820. The cubic root of 99071845 is about 462.7183794618.

The spelling of 99071845 in words is "ninety-nine million, seventy-one thousand, eight hundred forty-five".