78896169 has 12 divisors (see below), whose sum is σ = 124321392. Its totient is φ = 47815800.

The previous prime is 78896161. The next prime is 78896183. The reversal of 78896169 is 96169887.

It is not a de Polignac number, because 78896169 - 2³ = 78896161 is a prime.

It is a super-2 number, since 2×78896169² = 12449210965753122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78896161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 398367 + ... + 398564.

It is an arithmetic number, because the mean of its divisors is an integer number (10360116).

Almost surely, 2^78896169 is an apocalyptic number.

It is an amenable number.

78896169 is a deficient number, since it is larger than the sum of its proper divisors (45425223).

78896169 is a wasteful number, since it uses less digits than its factorization.

78896169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796948 (or 796945 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The square root of 78896169 is about 8882.3515467471. The cubic root of 78896169 is about 428.8959762128.

The spelling of 78896169 in words is "seventy-eight million, eight hundred ninety-six thousand, one hundred sixty-nine".