104937991 has 8 divisors (see below), whose sum is σ = 112518720. Its totient is φ = 97513728.

The previous prime is 104937977. The next prime is 104937997. The reversal of 104937991 is 199739401.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104937991 is a prime.

It is a super-2 number, since 2×104937991² = 22023963910232162, 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 (104937997) 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, 37726 + ... + 40411.

It is an arithmetic number, because the mean of its divisors is an integer number (14064840).

Almost surely, 2^104937991 is an apocalyptic number.

104937991 is a deficient number, since it is larger than the sum of its proper divisors (7580729).

104937991 is an equidigital number, since it uses as much as digits as its factorization.

104937991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78233.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 104937991 is about 10243.9245897263. The cubic root of 104937991 is about 471.6765100658.

The spelling of 104937991 in words is "one hundred four million, nine hundred thirty-seven thousand, nine hundred ninety-one".