73640783 has 2 divisors, whose sum is σ = 73640784. Its totient is φ = 73640782.

The previous prime is 73640771. The next prime is 73640803. The reversal of 73640783 is 38704637.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73640783 - 2⁸ = 73640527 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73640183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36820391 + 36820392.

It is an arithmetic number, because the mean of its divisors is an integer number (36820392).

Almost surely, 2^73640783 is an apocalyptic number.

73640783 is a deficient number, since it is larger than the sum of its proper divisors (1).

73640783 is an equidigital number, since it uses as much as digits as its factorization.

73640783 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 73640783 is about 8581.4208031071. The cubic root of 73640783 is about 419.1532126335.

The spelling of 73640783 in words is "seventy-three million, six hundred forty thousand, seven hundred eighty-three".