1973500807 has 2 divisors, whose sum is σ = 1973500808. Its totient is φ = 1973500806.

The previous prime is 1973500801. The next prime is 1973500829. The reversal of 1973500807 is 7080053791.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1973500807 - 2³ = 1973500799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1973500807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1973500801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 986750403 + 986750404.

It is an arithmetic number, because the mean of its divisors is an integer number (986750404).

Almost surely, 2^1973500807 is an apocalyptic number.

1973500807 is a deficient number, since it is larger than the sum of its proper divisors (1).

1973500807 is an equidigital number, since it uses as much as digits as its factorization.

1973500807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 1973500807 is about 44424.1016453906. The cubic root of 1973500807 is about 1254.3318098249.

The spelling of 1973500807 in words is "one billion, nine hundred seventy-three million, five hundred thousand, eight hundred seven".