78683963 has 2 divisors, whose sum is σ = 78683964. Its totient is φ = 78683962.

The previous prime is 78683951. The next prime is 78683987. The reversal of 78683963 is 36938687.

It is a weak prime.

It is an emirp because it is prime and its reverse (36938687) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78683963 - 2¹⁴ = 78667579 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (78683923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39341981 + 39341982.

It is an arithmetic number, because the mean of its divisors is an integer number (39341982).

Almost surely, 2^78683963 is an apocalyptic number.

78683963 is a deficient number, since it is larger than the sum of its proper divisors (1).

78683963 is an equidigital number, since it uses as much as digits as its factorization.

78683963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 50.

The square root of 78683963 is about 8870.3981308620. The cubic root of 78683963 is about 428.5110989629.

The spelling of 78683963 in words is "seventy-eight million, six hundred eighty-three thousand, nine hundred sixty-three".