78763351 has 2 divisors, whose sum is σ = 78763352. Its totient is φ = 78763350.

The previous prime is 78763331. The next prime is 78763361. The reversal of 78763351 is 15336787.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78763351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78763301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39381675 + 39381676.

It is an arithmetic number, because the mean of its divisors is an integer number (39381676).

Almost surely, 2^78763351 is an apocalyptic number.

78763351 is a deficient number, since it is larger than the sum of its proper divisors (1).

78763351 is an equidigital number, since it uses as much as digits as its factorization.

78763351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 40.

The square root of 78763351 is about 8874.8718863993. The cubic root of 78763351 is about 428.6551656114.

The spelling of 78763351 in words is "seventy-eight million, seven hundred sixty-three thousand, three hundred fifty-one".