78456334 has 8 divisors (see below), whose sum is σ = 128383128. Its totient is φ = 35661960.

The previous prime is 78456311. The next prime is 78456379. The reversal of 78456334 is 43365487.

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

It is a congruent number.

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, 1783077 + ... + 1783120.

It is an arithmetic number, because the mean of its divisors is an integer number (16047891).

Almost surely, 2^78456334 is an apocalyptic number.

78456334 is a deficient number, since it is larger than the sum of its proper divisors (49926794).

78456334 is a wasteful number, since it uses less digits than its factorization.

78456334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3566210.

The product of its digits is 241920, while the sum is 40.

The square root of 78456334 is about 8857.5580156158. The cubic root of 78456334 is about 428.0974790344.

The spelling of 78456334 in words is "seventy-eight million, four hundred fifty-six thousand, three hundred thirty-four".