679289490 has 224 divisors, whose sum is σ = 2056798656. Its totient is φ = 160030080.

The previous prime is 679289489. The next prime is 679289503. The reversal of 679289490 is 94982976.

679289490 is a `hidden beast` number, since 6 + 79 + 2 + 89 + 490 = 666.

It is a super-2 number, since 2×679289490² = 922868422448920200, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 3448072 + ... + 3448268.

Almost surely, 2^679289490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 679289490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1028399328).

679289490 is an abundant number, since it is smaller than the sum of its proper divisors (1377509166).

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

679289490 is a wasteful number, since it uses less digits than its factorization.

679289490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The square root of 679289490 is about 26063.1826529302. The cubic root of 679289490 is about 879.0595540263.

The spelling of 679289490 in words is "six hundred seventy-nine million, two hundred eighty-nine thousand, four hundred ninety".