2870009823 has 4 divisors (see below), whose sum is σ = 3826679768. Its totient is φ = 1913339880.

The previous prime is 2870009809. The next prime is 2870009843. The reversal of 2870009823 is 3289000782.

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

It is not a de Polignac number, because 2870009823 - 2²⁴ = 2853232607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2870009843) 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, 478334968 + ... + 478334973.

It is an arithmetic number, because the mean of its divisors is an integer number (956669942).

Almost surely, 2^2870009823 is an apocalyptic number.

2870009823 is a deficient number, since it is larger than the sum of its proper divisors (956669945).

2870009823 is an equidigital number, since it uses as much as digits as its factorization.

2870009823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956669944.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 2870009823 is about 53572.4726235405. The cubic root of 2870009823 is about 1421.1103236501.

The spelling of 2870009823 in words is "two billion, eight hundred seventy million, nine thousand, eight hundred twenty-three".