679075531 has 2 divisors, whose sum is σ = 679075532. Its totient is φ = 679075530.

The previous prime is 679075499. The next prime is 679075543. The reversal of 679075531 is 135570976.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 679075531 - 2⁵ = 679075499 is a prime.

It is a super-2 number, since 2×679075531² = 922287153605863922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (679045531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339537765 + 339537766.

It is an arithmetic number, because the mean of its divisors is an integer number (339537766).

Almost surely, 2^679075531 is an apocalyptic number.

679075531 is a deficient number, since it is larger than the sum of its proper divisors (1).

679075531 is an equidigital number, since it uses as much as digits as its factorization.

679075531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 198450, while the sum is 43.

The square root of 679075531 is about 26059.0777081615. The cubic root of 679075531 is about 878.9672504961.

The spelling of 679075531 in words is "six hundred seventy-nine million, seventy-five thousand, five hundred thirty-one".