100664279 has 2 divisors, whose sum is σ = 100664280. Its totient is φ = 100664278.

The previous prime is 100664231. The next prime is 100664281. The reversal of 100664279 is 972466001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100664279 - 2⁸ = 100664023 is a prime.

Together with 100664281, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100661279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50332139 + 50332140.

It is an arithmetic number, because the mean of its divisors is an integer number (50332140).

Almost surely, 2^100664279 is an apocalyptic number.

100664279 is a deficient number, since it is larger than the sum of its proper divisors (1).

100664279 is an equidigital number, since it uses as much as digits as its factorization.

100664279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 100664279 is about 10033.1589741218. The cubic root of 100664279 is about 465.1843859656.

The spelling of 100664279 in words is "one hundred million, six hundred sixty-four thousand, two hundred seventy-nine".