78674 has 8 divisors (see below), whose sum is σ = 119280. Its totient is φ = 38916.

The previous prime is 78653. The next prime is 78691. The reversal of 78674 is 47687.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 78674.

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, 137 + ... + 419.

It is an arithmetic number, because the mean of its divisors is an integer number (14910).

2⁷⁸⁶⁷⁴ is an apocalyptic number.

78674 is a deficient number, since it is larger than the sum of its proper divisors (40606).

78674 is a wasteful number, since it uses less digits than its factorization.

78674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424.

The product of its digits is 9408, while the sum is 32.

The square root of 78674 is about 280.4888589588. The cubic root of 78674 is about 42.8493012108.

The spelling of 78674 in words is "seventy-eight thousand, six hundred seventy-four".