509682894 has 16 divisors (see below), whose sum is σ = 1164989568. Its totient is φ = 145623672.

The previous prime is 509682893. The next prime is 509682937. The reversal of 509682894 is 498286905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509682893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6067612 + ... + 6067695.

It is an arithmetic number, because the mean of its divisors is an integer number (72811848).

Almost surely, 2^509682894 is an apocalyptic number.

509682894 is an abundant number, since it is smaller than the sum of its proper divisors (655306674).

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

509682894 is a wasteful number, since it uses less digits than its factorization.

509682894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12135319.

The product of its (nonzero) digits is 1244160, while the sum is 51.

The square root of 509682894 is about 22576.1576447366. The cubic root of 509682894 is about 798.7913488309.

It can be divided in two parts, 5096 and 82894, that added together give a triangular number (87990 = T₄₁₉).

The spelling of 509682894 in words is "five hundred nine million, six hundred eighty-two thousand, eight hundred ninety-four".