805172916 has 48 divisors (see below), whose sum is σ = 1913696960. Its totient is φ = 263416320.

The previous prime is 805172911. The next prime is 805172917. The reversal of 805172916 is 619271508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805172911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 452220 + ... + 453996.

Almost surely, 2^805172916 is an apocalyptic number.

It is an amenable number.

805172916 is an abundant number, since it is smaller than the sum of its proper divisors (1108524044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

805172916 is a wasteful number, since it uses less digits than its factorization.

805172916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2464 (or 2462 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 39.

The square root of 805172916 is about 28375.5689987003. The cubic root of 805172916 is about 930.3143485856.

The spelling of 805172916 in words is "eight hundred five million, one hundred seventy-two thousand, nine hundred sixteen".