78354 has 16 divisors (see below), whose sum is σ = 174240. Its totient is φ = 26100.

The previous prime is 78347. The next prime is 78367. The reversal of 78354 is 45387.

It is a super-2 number, since 2×78354² = 12278698632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 672 + ... + 779.

It is an arithmetic number, because the mean of its divisors is an integer number (10890).

2⁷⁸³⁵⁴ is an apocalyptic number.

78354 is an abundant number, since it is smaller than the sum of its proper divisors (95886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87120).

78354 is a wasteful number, since it uses less digits than its factorization.

78354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462 (or 1456 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 78354 is about 279.9178450903. The cubic root of 78354 is about 42.7911269346.

The spelling of 78354 in words is "seventy-eight thousand, three hundred fifty-four".