100639723 has 2 divisors, whose sum is σ = 100639724. Its totient is φ = 100639722.

The previous prime is 100639703. The next prime is 100639727. The reversal of 100639723 is 327936001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100639723 - 2⁹ = 100639211 is a prime.

It is not a weakly prime, because it can be changed into another prime (100639727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50319861 + 50319862.

It is an arithmetic number, because the mean of its divisors is an integer number (50319862).

Almost surely, 2^100639723 is an apocalyptic number.

100639723 is a deficient number, since it is larger than the sum of its proper divisors (1).

100639723 is an equidigital number, since it uses as much as digits as its factorization.

100639723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 100639723 is about 10031.9351572865. The cubic root of 100639723 is about 465.1465572646.

The spelling of 100639723 in words is "one hundred million, six hundred thirty-nine thousand, seven hundred twenty-three".