72916783 has 2 divisors, whose sum is σ = 72916784. Its totient is φ = 72916782.

The previous prime is 72916771. The next prime is 72916799. The reversal of 72916783 is 38761927.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72916783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72916183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36458391 + 36458392.

It is an arithmetic number, because the mean of its divisors is an integer number (36458392).

Almost surely, 2^72916783 is an apocalyptic number.

72916783 is a deficient number, since it is larger than the sum of its proper divisors (1).

72916783 is an equidigital number, since it uses as much as digits as its factorization.

72916783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 43.

The square root of 72916783 is about 8539.1324500795. The cubic root of 72916783 is about 417.7750500902.

The spelling of 72916783 in words is "seventy-two million, nine hundred sixteen thousand, seven hundred eighty-three".