104782731 has 8 divisors (see below), whose sum is σ = 140205120. Its totient is φ = 69607752.

The previous prime is 104782673. The next prime is 104782801. The reversal of 104782731 is 137287401.

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 104782731 - 2¹⁸ = 104520587 is a prime.

It is a super-2 number, since 2×104782731² = 21958841431636722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 104782692 and 104782701.

It is not an unprimeable number, because it can be changed into a prime (104782031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60861 + ... + 62558.

It is an arithmetic number, because the mean of its divisors is an integer number (17525640).

Almost surely, 2^104782731 is an apocalyptic number.

104782731 is a deficient number, since it is larger than the sum of its proper divisors (35422389).

104782731 is a wasteful number, since it uses less digits than its factorization.

104782731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123705.

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 104782731 is about 10236.3436343257. The cubic root of 104782731 is about 471.4437737587.

The spelling of 104782731 in words is "one hundred four million, seven hundred eighty-two thousand, seven hundred thirty-one".