672696979 has 2 divisors, whose sum is σ = 672696980. Its totient is φ = 672696978.

The previous prime is 672696967. The next prime is 672696991. The reversal of 672696979 is 979696276.

It is a balanced prime because it is at equal distance from previous prime (672696967) and next prime (672696991).

It is a cyclic number.

It is not a de Polignac number, because 672696979 - 2⁹ = 672696467 is a prime.

It is a super-3 number, since 3×672696979³ (a number of 27 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (672696949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336348489 + 336348490.

It is an arithmetic number, because the mean of its divisors is an integer number (336348490).

Almost surely, 2^672696979 is an apocalyptic number.

672696979 is a deficient number, since it is larger than the sum of its proper divisors (1).

672696979 is an equidigital number, since it uses as much as digits as its factorization.

672696979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15431472, while the sum is 61.

The square root of 672696979 is about 25936.4025840131. The cubic root of 672696979 is about 876.2065440668.

The spelling of 672696979 in words is "six hundred seventy-two million, six hundred ninety-six thousand, nine hundred seventy-nine".