100263979 has 2 divisors, whose sum is σ = 100263980. Its totient is φ = 100263978.

The previous prime is 100263973. The next prime is 100263997. The reversal of 100263979 is 979362001.

Together with next prime (100263997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100263979 - 2³ = 100263971 is a prime.

It is a Chen prime.

It is equal to p_5775832 and since 100263979 and 5775832 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (100263971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50131989 + 50131990.

It is an arithmetic number, because the mean of its divisors is an integer number (50131990).

Almost surely, 2^100263979 is an apocalyptic number.

100263979 is a deficient number, since it is larger than the sum of its proper divisors (1).

100263979 is an equidigital number, since it uses as much as digits as its factorization.

100263979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 100263979 is about 10013.1902508641. The cubic root of 100263979 is about 464.5669518262.

The spelling of 100263979 in words is "one hundred million, two hundred sixty-three thousand, nine hundred seventy-nine".