78300823 has 8 divisors (see below), whose sum is σ = 82035200. Its totient is φ = 74642040.

The previous prime is 78300811. The next prime is 78300829. The reversal of 78300823 is 32800387.

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 78300823 - 2⁵ = 78300791 is a prime.

It is a super-2 number, since 2×78300823² = 12262037764954658, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78300829) 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, 16773 + ... + 20926.

It is an arithmetic number, because the mean of its divisors is an integer number (10254400).

Almost surely, 2^78300823 is an apocalyptic number.

78300823 is a deficient number, since it is larger than the sum of its proper divisors (3734377).

78300823 is a wasteful number, since it uses less digits than its factorization.

78300823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37797.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 78300823 is about 8848.7752259847. The cubic root of 78300823 is about 427.8144430308.

The spelling of 78300823 in words is "seventy-eight million, three hundred thousand, eight hundred twenty-three".