679285494 has 32 divisors (see below), whose sum is σ = 1520400000. Its totient is φ = 224797032.

The previous prime is 679285483. The next prime is 679285543. The reversal of 679285494 is 494582976.

679285494 is a `hidden beast` number, since 6 + 7 + 92 + 8 + 549 + 4 = 666.

It is a super-2 number, since 2×679285494² = 922857564717648072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 679285494.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37744 + ... + 52755.

It is an arithmetic number, because the mean of its divisors is an integer number (47512500).

Almost surely, 2^679285494 is an apocalyptic number.

679285494 is an abundant number, since it is smaller than the sum of its proper divisors (841114506).

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

679285494 is a wasteful number, since it uses less digits than its factorization.

679285494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90649 (or 90643 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The square root of 679285494 is about 26063.1059929549. The cubic root of 679285494 is about 879.0578302993.

The spelling of 679285494 in words is "six hundred seventy-nine million, two hundred eighty-five thousand, four hundred ninety-four".