78123363 has 8 divisors (see below), whose sum is σ = 104240400. Its totient is φ = 52044288.

The previous prime is 78123349. The next prime is 78123403. The reversal of 78123363 is 36332187.

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

It is not a de Polignac number, because 78123363 - 2⁸ = 78123107 is a prime.

It is a super-2 number, since 2×78123363² = 12206519692859538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78123343) 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, 4278 + ... + 13211.

It is an arithmetic number, because the mean of its divisors is an integer number (13030050).

Almost surely, 2^78123363 is an apocalyptic number.

78123363 is a deficient number, since it is larger than the sum of its proper divisors (26117037).

78123363 is a wasteful number, since it uses less digits than its factorization.

78123363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18981.

The product of its digits is 18144, while the sum is 33.

The square root of 78123363 is about 8838.7421616427. The cubic root of 78123363 is about 427.4910008023.

It can be divided in two parts, 7812 and 3363, that added together give a triangular number (11175 = T₁₄₉).

The spelling of 78123363 in words is "seventy-eight million, one hundred twenty-three thousand, three hundred sixty-three".