78299 has 8 divisors (see below), whose sum is σ = 89040. Its totient is φ = 68256.

The previous prime is 78283. The next prime is 78301. The reversal of 78299 is 99287.

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

It is a cyclic number.

It is not a de Polignac number, because 78299 - 2⁴ = 78283 is a prime.

It is a super-2 number, since 2×78299² = 12261466802, which contains 22 as substring.

It is a Duffinian 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, 89 + ... + 405.

It is an arithmetic number, because the mean of its divisors is an integer number (11130).

2⁷⁸²⁹⁹ is an apocalyptic number.

78299 is a deficient number, since it is larger than the sum of its proper divisors (10741).

78299 is a wasteful number, since it uses less digits than its factorization.

78299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349.

The product of its digits is 9072, while the sum is 35.

The square root of 78299 is about 279.8195847327. The cubic root of 78299 is about 42.7811122879.

The spelling of 78299 in words is "seventy-eight thousand, two hundred ninety-nine".