68470783 has 2 divisors, whose sum is σ = 68470784. Its totient is φ = 68470782.

The previous prime is 68470763. The next prime is 68470789. The reversal of 68470783 is 38707486.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68470783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68470789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34235391 + 34235392.

It is an arithmetic number, because the mean of its divisors is an integer number (34235392).

Almost surely, 2^68470783 is an apocalyptic number.

68470783 is a deficient number, since it is larger than the sum of its proper divisors (1).

68470783 is an equidigital number, since it uses as much as digits as its factorization.

68470783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 68470783 is about 8274.7074268520. The cubic root of 68470783 is about 409.1052926824.

The spelling of 68470783 in words is "sixty-eight million, four hundred seventy thousand, seven hundred eighty-three".