99291273 has 8 divisors (see below), whose sum is σ = 136953600. Its totient is φ = 63911568.

The previous prime is 99291251. The next prime is 99291281. The reversal of 99291273 is 37219299.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-99291273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99291223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 570553 + ... + 570726.

It is an arithmetic number, because the mean of its divisors is an integer number (17119200).

Almost surely, 2^99291273 is an apocalyptic number.

It is an amenable number.

99291273 is a deficient number, since it is larger than the sum of its proper divisors (37662327).

99291273 is a wasteful number, since it uses less digits than its factorization.

99291273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141311.

The product of its digits is 61236, while the sum is 42.

The square root of 99291273 is about 9964.5006397712. The cubic root of 99291273 is about 463.0597428455.

The spelling of 99291273 in words is "ninety-nine million, two hundred ninety-one thousand, two hundred seventy-three".