78304783 has 2 divisors, whose sum is σ = 78304784. Its totient is φ = 78304782.

The previous prime is 78304777. The next prime is 78304789. The reversal of 78304783 is 38740387.

It is a balanced prime because it is at equal distance from previous prime (78304777) and next prime (78304789).

It is a cyclic number.

It is not a de Polignac number, because 78304783 - 2⁹ = 78304271 is a prime.

It is a super-2 number, since 2×78304783² = 12263278081354178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78304789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39152391 + 39152392.

It is an arithmetic number, because the mean of its divisors is an integer number (39152392).

Almost surely, 2^78304783 is an apocalyptic number.

78304783 is a deficient number, since it is larger than the sum of its proper divisors (1).

78304783 is an equidigital number, since it uses as much as digits as its factorization.

78304783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 78304783 is about 8848.9989829359. The cubic root of 78304783 is about 427.8216550310.

The spelling of 78304783 in words is "seventy-eight million, three hundred four thousand, seven hundred eighty-three".