104278387 has 2 divisors, whose sum is σ = 104278388. Its totient is φ = 104278386.

The previous prime is 104278373. The next prime is 104278409. The reversal of 104278387 is 783872401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 104278387 - 2⁷ = 104278259 is a prime.

It is not a weakly prime, because it can be changed into another prime (104278337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52139193 + 52139194.

It is an arithmetic number, because the mean of its divisors is an integer number (52139194).

Almost surely, 2^104278387 is an apocalyptic number.

104278387 is a deficient number, since it is larger than the sum of its proper divisors (1).

104278387 is an equidigital number, since it uses as much as digits as its factorization.

104278387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 104278387 is about 10211.6789510834. The cubic root of 104278387 is about 470.6861669136.

The spelling of 104278387 in words is "one hundred four million, two hundred seventy-eight thousand, three hundred eighty-seven".