872070923 has 4 divisors (see below), whose sum is σ = 872290248. Its totient is φ = 871851600.

The previous prime is 872070907. The next prime is 872070929. The reversal of 872070923 is 329070278.

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

It is a cyclic number.

It is not a de Polignac number, because 872070923 - 2⁴ = 872070907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (872070929) 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, 103586 + ... + 111687.

It is an arithmetic number, because the mean of its divisors is an integer number (218072562).

Almost surely, 2^872070923 is an apocalyptic number.

872070923 is a deficient number, since it is larger than the sum of its proper divisors (219325).

872070923 is a wasteful number, since it uses less digits than its factorization.

872070923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219324.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 872070923 is about 29530.8469739694. The cubic root of 872070923 is about 955.3971368023.

The spelling of 872070923 in words is "eight hundred seventy-two million, seventy thousand, nine hundred twenty-three".