78254 has 8 divisors (see below), whose sum is σ = 128088. Its totient is φ = 35560.

The previous prime is 78241. The next prime is 78259. The reversal of 78254 is 45287.

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

It is a super-2 number, since 2×78254² = 12247377032, which contains 22 as substring.

It is a d-powerful number, because it can be written as 7² + 8 + 2³ + 5⁷ + 4³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1757 + ... + 1800.

It is an arithmetic number, because the mean of its divisors is an integer number (16011).

2⁷⁸²⁵⁴ is an apocalyptic number.

78254 is a deficient number, since it is larger than the sum of its proper divisors (49834).

78254 is a wasteful number, since it uses less digits than its factorization.

78254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3570.

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

The square root of 78254 is about 279.7391642227. The cubic root of 78254 is about 42.7729149973.

The spelling of 78254 in words is "seventy-eight thousand, two hundred fifty-four".