679187500 has 42 divisors (see below), whose sum is σ = 1485840356. Its totient is φ = 271650000.

The previous prime is 679187489. The next prime is 679187513. The reversal of 679187500 is 5781976.

It is a super-2 number, since 2×679187500² = 922591320312500000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 57067 + ... + 67933.

Almost surely, 2^679187500 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 679187500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (742920178).

679187500 is an abundant number, since it is smaller than the sum of its proper divisors (806652856).

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

679187500 is an equidigital number, since it uses as much as digits as its factorization.

679187500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10901 (or 10874 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 43.

The square root of 679187500 is about 26061.2259880459. The cubic root of 679187500 is about 879.0155571871.

The spelling of 679187500 in words is "six hundred seventy-nine million, one hundred eighty-seven thousand, five hundred".