679509468 has 72 divisors (see below), whose sum is σ = 1879493616. Its totient is φ = 205286400.

The previous prime is 679509427. The next prime is 679509487. The reversal of 679509468 is 864905976.

679509468 is a `hidden beast` number, since 6 + 79 + 509 + 4 + 68 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137358 + ... + 142218.

It is an arithmetic number, because the mean of its divisors is an integer number (26104078).

Almost surely, 2^679509468 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 679509468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (939746808).

679509468 is an abundant number, since it is smaller than the sum of its proper divisors (1199984148).

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

679509468 is a wasteful number, since it uses less digits than its factorization.

679509468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5235 (or 5230 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The square root of 679509468 is about 26067.4024022341. The cubic root of 679509468 is about 879.1544339930.

The spelling of 679509468 in words is "six hundred seventy-nine million, five hundred nine thousand, four hundred sixty-eight".