78994283 has 2 divisors, whose sum is σ = 78994284. Its totient is φ = 78994282.

The previous prime is 78994277. The next prime is 78994301. The reversal of 78994283 is 38249987.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78994283 - 2¹⁰ = 78993259 is a prime.

It is not a weakly prime, because it can be changed into another prime (78994243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39497141 + 39497142.

It is an arithmetic number, because the mean of its divisors is an integer number (39497142).

Almost surely, 2^78994283 is an apocalyptic number.

78994283 is a deficient number, since it is larger than the sum of its proper divisors (1).

78994283 is an equidigital number, since it uses as much as digits as its factorization.

78994283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 50.

The square root of 78994283 is about 8887.8728051205. The cubic root of 78994283 is about 429.0736919320.

The spelling of 78994283 in words is "seventy-eight million, nine hundred ninety-four thousand, two hundred eighty-three".