78816941 has 16 divisors (see below), whose sum is σ = 93446400. Its totient is φ = 66432240.

The previous prime is 78816931. The next prime is 78816971. The reversal of 78816941 is 14961887.

It is not a de Polignac number, because 78816941 - 2⁶ = 78816877 is a prime.

It is a super-2 number, since 2×78816941² = 12424220377194962, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78816892 and 78816901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78816901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19040 + ... + 22806.

It is an arithmetic number, because the mean of its divisors is an integer number (5840400).

Almost surely, 2^78816941 is an apocalyptic number.

It is an amenable number.

78816941 is a deficient number, since it is larger than the sum of its proper divisors (14629459).

78816941 is an equidigital number, since it uses as much as digits as its factorization.

78816941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3849 (or 3835 counting only the distinct ones).

The product of its digits is 96768, while the sum is 44.

The square root of 78816941 is about 8877.8905715265. The cubic root of 78816941 is about 428.7523615030.

The spelling of 78816941 in words is "seventy-eight million, eight hundred sixteen thousand, nine hundred forty-one".