78054359 has 2 divisors, whose sum is σ = 78054360. Its totient is φ = 78054358.

The previous prime is 78054329. The next prime is 78054371. The reversal of 78054359 is 95345087.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78054359 - 2²⁰ = 77005783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78054329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39027179 + 39027180.

It is an arithmetic number, because the mean of its divisors is an integer number (39027180).

Almost surely, 2^78054359 is an apocalyptic number.

78054359 is a deficient number, since it is larger than the sum of its proper divisors (1).

78054359 is an equidigital number, since it uses as much as digits as its factorization.

78054359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 78054359 is about 8834.8378026990. The cubic root of 78054359 is about 427.3651004433.

The spelling of 78054359 in words is "seventy-eight million, fifty-four thousand, three hundred fifty-nine".