104670781 has 2 divisors, whose sum is σ = 104670782. Its totient is φ = 104670780.

The previous prime is 104670749. The next prime is 104670793. The reversal of 104670781 is 187076401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85266756 + 19404025 = 9234^2 + 4405^2 .

It is a cyclic number.

It is not a de Polignac number, because 104670781 - 2⁵ = 104670749 is a prime.

It is a super-2 number, since 2×104670781² = 21911944790299922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104670701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52335390 + 52335391.

It is an arithmetic number, because the mean of its divisors is an integer number (52335391).

Almost surely, 2^104670781 is an apocalyptic number.

It is an amenable number.

104670781 is a deficient number, since it is larger than the sum of its proper divisors (1).

104670781 is an equidigital number, since it uses as much as digits as its factorization.

104670781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 104670781 is about 10230.8739118415. The cubic root of 104670781 is about 471.2758168915.

The spelling of 104670781 in words is "one hundred four million, six hundred seventy thousand, seven hundred eighty-one".