78662416 has 40 divisors (see below), whose sum is σ = 174998720. Its totient is φ = 33554304.

The previous prime is 78662411. The next prime is 78662447. The reversal of 78662416 is 61426687.

It is not an unprimeable number, because it can be changed into a prime (78662411) 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, 24115 + ... + 27181.

It is an arithmetic number, because the mean of its divisors is an integer number (4374968).

Almost surely, 2^78662416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78662416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87499360).

78662416 is an abundant number, since it is smaller than the sum of its proper divisors (96336304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78662416 is a wasteful number, since it uses less digits than its factorization.

78662416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3311 (or 3305 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 78662416 is about 8869.1835024426. The cubic root of 78662416 is about 428.4719805655.

The spelling of 78662416 in words is "seventy-eight million, six hundred sixty-two thousand, four hundred sixteen".