104921679 has 4 divisors (see below), whose sum is σ = 139895576. Its totient is φ = 69947784.

The previous prime is 104921657. The next prime is 104921683. The reversal of 104921679 is 976129401.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-104921679 is a prime.

It is a super-2 number, since 2×104921679² = 22017117448358082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104921689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17486944 + ... + 17486949.

It is an arithmetic number, because the mean of its divisors is an integer number (34973894).

Almost surely, 2^104921679 is an apocalyptic number.

104921679 is a deficient number, since it is larger than the sum of its proper divisors (34973897).

104921679 is an equidigital number, since it uses as much as digits as its factorization.

104921679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34973896.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 104921679 is about 10243.1283795528. The cubic root of 104921679 is about 471.6520690098.

The spelling of 104921679 in words is "one hundred four million, nine hundred twenty-one thousand, six hundred seventy-nine".