78283768 has 16 divisors (see below), whose sum is σ = 148155480. Its totient is φ = 38775648.

The previous prime is 78283757. The next prime is 78283783. The reversal of 78283768 is 86738287.

It is a super-2 number, since 2×78283768² = 12256696664555648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44871 + ... + 46582.

Almost surely, 2^78283768 is an apocalyptic number.

It is an amenable number.

78283768 is a deficient number, since it is larger than the sum of its proper divisors (69871712).

78283768 is a wasteful number, since it uses less digits than its factorization.

78283768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91566 (or 91562 counting only the distinct ones).

The product of its digits is 903168, while the sum is 49.

The square root of 78283768 is about 8847.8114808126. The cubic root of 78283768 is about 427.7833794785.

The spelling of 78283768 in words is "seventy-eight million, two hundred eighty-three thousand, seven hundred sixty-eight".