679131527 has 2 divisors, whose sum is σ = 679131528. Its totient is φ = 679131526.

The previous prime is 679131463. The next prime is 679131571. The reversal of 679131527 is 725131976.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 679131527 - 2⁶ = 679131463 is a prime.

It is a super-2 number, since 2×679131527² = 922439261930703458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (679131227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339565763 + 339565764.

It is an arithmetic number, because the mean of its divisors is an integer number (339565764).

Almost surely, 2^679131527 is an apocalyptic number.

679131527 is a deficient number, since it is larger than the sum of its proper divisors (1).

679131527 is an equidigital number, since it uses as much as digits as its factorization.

679131527 is an evil number, because the sum of its binary digits is even.

The product of its digits is 79380, while the sum is 41.

The square root of 679131527 is about 26060.1520908839. The cubic root of 679131527 is about 878.9914094667.

The spelling of 679131527 in words is "six hundred seventy-nine million, one hundred thirty-one thousand, five hundred twenty-seven".