78553883 has 2 divisors, whose sum is σ = 78553884. Its totient is φ = 78553882.

The previous prime is 78553859. The next prime is 78553921. The reversal of 78553883 is 38835587.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78553883 - 2²⁶ = 11445019 is a prime.

It is not a weakly prime, because it can be changed into another prime (78553283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39276941 + 39276942.

It is an arithmetic number, because the mean of its divisors is an integer number (39276942).

Almost surely, 2^78553883 is an apocalyptic number.

78553883 is a deficient number, since it is larger than the sum of its proper divisors (1).

78553883 is an equidigital number, since it uses as much as digits as its factorization.

78553883 is an evil number, because the sum of its binary digits is even.

The product of its digits is 806400, while the sum is 47.

The square root of 78553883 is about 8863.0628453148. The cubic root of 78553883 is about 428.2748311278.

The spelling of 78553883 in words is "seventy-eight million, five hundred fifty-three thousand, eight hundred eighty-three".