78267794 has 16 divisors (see below), whose sum is σ = 128307456. Its totient is φ = 35511600.

The previous prime is 78267769. The next prime is 78267817. The reversal of 78267794 is 49776287.

It is a super-2 number, since 2×78267794² = 12251695155252872, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10424 + ... + 16284.

It is an arithmetic number, because the mean of its divisors is an integer number (8019216).

Almost surely, 2^78267794 is an apocalyptic number.

78267794 is a deficient number, since it is larger than the sum of its proper divisors (50039662).

78267794 is a wasteful number, since it uses less digits than its factorization.

78267794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6481.

The product of its digits is 1185408, while the sum is 50.

The square root of 78267794 is about 8846.9087256510. The cubic root of 78267794 is about 427.7542807406.

The spelling of 78267794 in words is "seventy-eight million, two hundred sixty-seven thousand, seven hundred ninety-four".