679650270 has 128 divisors (see below), whose sum is σ = 1810626048. Its totient is φ = 162240000.

The previous prime is 679650241. The next prime is 679650271. The reversal of 679650270 is 72056976.

It is a happy number.

It is a super-2 number, since 2×679650270² = 923848979022145800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679650271) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2707645 + ... + 2707895.

It is an arithmetic number, because the mean of its divisors is an integer number (14145516).

Almost surely, 2^679650270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 679650270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (905313024).

679650270 is an abundant number, since it is smaller than the sum of its proper divisors (1130975778).

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

679650270 is a wasteful number, since it uses less digits than its factorization.

679650270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458.

The product of its (nonzero) digits is 158760, while the sum is 42.

The square root of 679650270 is about 26070.1029917413. The cubic root of 679650270 is about 879.2151533596.

The spelling of 679650270 in words is "six hundred seventy-nine million, six hundred fifty thousand, two hundred seventy".