78735274 has 8 divisors (see below), whose sum is σ = 119430180. Its totient is φ = 38925216.

The previous prime is 78735269. The next prime is 78735281. The reversal of 78735274 is 47253787.

It can be written as a sum of positive squares in 2 ways, for example, as 76440049 + 2295225 = 8743^2 + 1515^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 78735274.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220989 + ... + 221344.

Almost surely, 2^78735274 is an apocalyptic number.

78735274 is a deficient number, since it is larger than the sum of its proper divisors (40694906).

78735274 is a wasteful number, since it uses less digits than its factorization.

78735274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442424.

The product of its digits is 329280, while the sum is 43.

The square root of 78735274 is about 8873.2899197536. The cubic root of 78735274 is about 428.6042249082.

The spelling of 78735274 in words is "seventy-eight million, seven hundred thirty-five thousand, two hundred seventy-four".