679947105 has 16 divisors (see below), whose sum is σ = 1088319744. Its totient is φ = 362503680.

The previous prime is 679947101. The next prime is 679947109. The reversal of 679947105 is 501749976.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (679947101) and next prime (679947109).

It is not a de Polignac number, because 679947105 - 2² = 679947101 is a prime.

It is not an unprimeable number, because it can be changed into a prime (679947101) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 43672 + ... + 57158.

It is an arithmetic number, because the mean of its divisors is an integer number (68019984).

Almost surely, 2^679947105 is an apocalyptic number.

It is an amenable number.

679947105 is a deficient number, since it is larger than the sum of its proper divisors (408372639).

679947105 is a wasteful number, since it uses less digits than its factorization.

679947105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16856.

The product of its (nonzero) digits is 476280, while the sum is 48.

The square root of 679947105 is about 26075.7953857596. The cubic root of 679947105 is about 879.3431328301.

The spelling of 679947105 in words is "six hundred seventy-nine million, nine hundred forty-seven thousand, one hundred five".