1972475807 has 2 divisors, whose sum is σ = 1972475808. Its totient is φ = 1972475806.

The previous prime is 1972475783. The next prime is 1972475819. The reversal of 1972475807 is 7085742791.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1972475807 - 2²² = 1968281503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1972475887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 986237903 + 986237904.

It is an arithmetic number, because the mean of its divisors is an integer number (986237904).

Almost surely, 2^1972475807 is an apocalyptic number.

1972475807 is a deficient number, since it is larger than the sum of its proper divisors (1).

1972475807 is an equidigital number, since it uses as much as digits as its factorization.

1972475807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 987840, while the sum is 50.

The square root of 1972475807 is about 44412.5636166164. The cubic root of 1972475807 is about 1254.1146132652.

The spelling of 1972475807 in words is "one billion, nine hundred seventy-two million, four hundred seventy-five thousand, eight hundred seven".