873023897 has 4 divisors (see below), whose sum is σ = 889496100. Its totient is φ = 856551696.

The previous prime is 873023867. The next prime is 873023909. The reversal of 873023897 is 798320378.

It is a happy number.

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 699285136 + 173738761 = 26444^2 + 13181^2 .

It is a cyclic number.

It is not a de Polignac number, because 873023897 - 2²² = 868829593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (873023867) 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, 8236022 + ... + 8236127.

It is an arithmetic number, because the mean of its divisors is an integer number (222374025).

Almost surely, 2^873023897 is an apocalyptic number.

It is an amenable number.

873023897 is a deficient number, since it is larger than the sum of its proper divisors (16472203).

873023897 is a wasteful number, since it uses less digits than its factorization.

873023897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16472202.

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 873023897 is about 29546.9777980761. The cubic root of 873023897 is about 955.7450202766.

The spelling of 873023897 in words is "eight hundred seventy-three million, twenty-three thousand, eight hundred ninety-seven".