100747691 has 8 divisors (see below), whose sum is σ = 110646000. Its totient is φ = 90972640.

The previous prime is 100747687. The next prime is 100747721. The reversal of 100747691 is 196747001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100747691 - 2² = 100747687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100747631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29096 + ... + 32373.

It is an arithmetic number, because the mean of its divisors is an integer number (13830750).

Almost surely, 2^100747691 is an apocalyptic number.

100747691 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

100747691 is a deficient number, since it is larger than the sum of its proper divisors (9898309).

100747691 is a wasteful number, since it uses less digits than its factorization.

100747691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61629.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 100747691 is about 10037.3149298007. The cubic root of 100747691 is about 465.3128368521.

The spelling of 100747691 in words is "one hundred million, seven hundred forty-seven thousand, six hundred ninety-one".