100091079 has 24 divisors (see below), whose sum is σ = 162994160. Its totient is φ = 60659280.

The previous prime is 100091077. The next prime is 100091119. The reversal of 100091079 is 970190001.

It is not a de Polignac number, because 100091079 - 2¹ = 100091077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100091071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12052 + ... + 18585.

Almost surely, 2^100091079 is an apocalyptic number.

100091079 is a deficient number, since it is larger than the sum of its proper divisors (62903081).

100091079 is a wasteful number, since it uses less digits than its factorization.

100091079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30668 (or 30651 counting only the distinct ones).

The product of its (nonzero) digits is 567, while the sum is 27.

The square root of 100091079 is about 10004.5529135489. The cubic root of 100091079 is about 464.2997576907.

The spelling of 100091079 in words is "one hundred million, ninety-one thousand, seventy-nine".