78269 has 8 divisors (see below), whose sum is σ = 84672. Its totient is φ = 72160.

The previous prime is 78259. The next prime is 78277. The reversal of 78269 is 96287.

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

It is a de Polignac number, because none of the positive numbers 2^k-78269 is a prime.

It is a super-2 number, since 2×78269² = 12252072722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 902 + ... + 984.

It is an arithmetic number, because the mean of its divisors is an integer number (10584).

2⁷⁸²⁶⁹ is an apocalyptic number.

It is an amenable number.

78269 is a deficient number, since it is larger than the sum of its proper divisors (6403).

78269 is a wasteful number, since it uses less digits than its factorization.

78269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147.

The product of its digits is 6048, while the sum is 32.

The square root of 78269 is about 279.7659736280. The cubic root of 78269 is about 42.7756477766.

The spelling of 78269 in words is "seventy-eight thousand, two hundred sixty-nine".