78054853 has 2 divisors, whose sum is σ = 78054854. Its totient is φ = 78054852.

The previous prime is 78054763. The next prime is 78054877. The reversal of 78054853 is 35845087.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68525284 + 9529569 = 8278^2 + 3087^2 .

It is a cyclic number.

It is not a de Polignac number, because 78054853 - 2²¹ = 75957701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78054553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39027426 + 39027427.

It is an arithmetic number, because the mean of its divisors is an integer number (39027427).

Almost surely, 2^78054853 is an apocalyptic number.

It is an amenable number.

78054853 is a deficient number, since it is larger than the sum of its proper divisors (1).

78054853 is an equidigital number, since it uses as much as digits as its factorization.

78054853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 78054853 is about 8834.8657601573. The cubic root of 78054853 is about 427.3660020283.

The spelling of 78054853 in words is "seventy-eight million, fifty-four thousand, eight hundred fifty-three".