78431350 has 24 divisors (see below), whose sum is σ = 146227248. Its totient is φ = 31298400.

The previous prime is 78431303. The next prime is 78431351. The reversal of 78431350 is 5313487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78431351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22740 + ... + 25960.

It is an arithmetic number, because the mean of its divisors is an integer number (6092802).

Almost surely, 2^78431350 is an apocalyptic number.

78431350 is a deficient number, since it is larger than the sum of its proper divisors (67795898).

78431350 is a wasteful number, since it uses less digits than its factorization.

78431350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3720 (or 3715 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 78431350 is about 8856.1475823295. The cubic root of 78431350 is about 428.0520324257.

The spelling of 78431350 in words is "seventy-eight million, four hundred thirty-one thousand, three hundred fifty".