99670273 has 4 divisors (see below), whose sum is σ = 99704788. Its totient is φ = 99635760.

The previous prime is 99670253. The next prime is 99670387. The reversal of 99670273 is 37207699.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62362609 + 37307664 = 7897^2 + 6108^2 .

It is a cyclic number.

It is not a de Polignac number, because 99670273 - 2²¹ = 97573121 is a prime.

It is the 9984-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99670223) by changing a digit.

It is a nontrivial repunit in base 9983.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12486 + ... + 18847.

It is an arithmetic number, because the mean of its divisors is an integer number (24926197).

Almost surely, 2^99670273 is an apocalyptic number.

It is an amenable number.

99670273 is a deficient number, since it is larger than the sum of its proper divisors (34515).

99670273 is a wasteful number, since it uses less digits than its factorization.

99670273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34514.

The product of its (nonzero) digits is 142884, while the sum is 43.

The square root of 99670273 is about 9983.5000375620. The cubic root of 99670273 is about 463.6481692414.

The spelling of 99670273 in words is "ninety-nine million, six hundred seventy thousand, two hundred seventy-three".