104913987 has 8 divisors (see below), whose sum is σ = 148113936. Its totient is φ = 65828352.

The previous prime is 104913943. The next prime is 104913989. The reversal of 104913987 is 789319401.

It is a happy number.

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

It is not a de Polignac number, because 104913987 - 2¹⁰ = 104912963 is a prime.

It is a super-2 number, since 2×104913987² = 22013889336472338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (104913989) 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, 1028518 + ... + 1028619.

It is an arithmetic number, because the mean of its divisors is an integer number (18514242).

Almost surely, 2^104913987 is an apocalyptic number.

104913987 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

104913987 is a deficient number, since it is larger than the sum of its proper divisors (43199949).

104913987 is a wasteful number, since it uses less digits than its factorization.

104913987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057157.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 104913987 is about 10242.7529014421. The cubic root of 104913987 is about 471.6405428365.

The spelling of 104913987 in words is "one hundred four million, nine hundred thirteen thousand, nine hundred eighty-seven".