78586763 has 6 divisors (see below), whose sum is σ = 79683444. Its totient is φ = 77504976.

The previous prime is 78586747. The next prime is 78586789. The reversal of 78586763 is 36768587.

It is not a de Polignac number, because 78586763 - 2⁴ = 78586747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78586063) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2045 + ... + 12702.

It is an arithmetic number, because the mean of its divisors is an integer number (13280574).

Almost surely, 2^78586763 is an apocalyptic number.

78586763 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

78586763 is a deficient number, since it is larger than the sum of its proper divisors (1096681).

78586763 is an equidigital number, since it uses as much as digits as its factorization.

78586763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14893 (or 14820 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 50.

The square root of 78586763 is about 8864.9175405076. The cubic root of 78586763 is about 428.3345765818.

The spelling of 78586763 in words is "seventy-eight million, five hundred eighty-six thousand, seven hundred sixty-three".