873038993 has 4 divisors (see below), whose sum is σ = 876517488. Its totient is φ = 869560500.

The previous prime is 873038981. The next prime is 873039031. The reversal of 873038993 is 399830378.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 873038993 - 2²⁰ = 871990417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (873038963) 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, 1738871 + ... + 1739372.

It is an arithmetic number, because the mean of its divisors is an integer number (219129372).

Almost surely, 2^873038993 is an apocalyptic number.

It is an amenable number.

873038993 is a deficient number, since it is larger than the sum of its proper divisors (3478495).

873038993 is a wasteful number, since it uses less digits than its factorization.

873038993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3478494.

The product of its (nonzero) digits is 979776, while the sum is 50.

The square root of 873038993 is about 29547.2332545706. The cubic root of 873038993 is about 955.7505290390.

The spelling of 873038993 in words is "eight hundred seventy-three million, thirty-eight thousand, nine hundred ninety-three".