78452 has 12 divisors (see below), whose sum is σ = 149856. Its totient is φ = 35640.

The previous prime is 78439. The next prime is 78467. The reversal of 78452 is 25487.

It is a congruent number.

It is an unprimeable number.

78452 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 848 + ... + 935.

It is an arithmetic number, because the mean of its divisors is an integer number (12488).

2⁷⁸⁴⁵² is an apocalyptic number.

It is an amenable number.

78452 is a deficient number, since it is larger than the sum of its proper divisors (71404).

78452 is a wasteful number, since it uses less digits than its factorization.

78452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1798 (or 1796 counting only the distinct ones).

The product of its digits is 2240, while the sum is 26.

The square root of 78452 is about 280.0928417507. The cubic root of 78452 is about 42.8089596056.

The spelling of 78452 in words is "seventy-eight thousand, four hundred fifty-two".