1970399759 has 2 divisors, whose sum is σ = 1970399760. Its totient is φ = 1970399758.

The previous prime is 1970399741. The next prime is 1970399777. The reversal of 1970399759 is 9579930791.

It is a balanced prime because it is at equal distance from previous prime (1970399741) and next prime (1970399777).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1970399759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1970399698 and 1970399707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1970329759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 985199879 + 985199880.

It is an arithmetic number, because the mean of its divisors is an integer number (985199880).

Almost surely, 2^1970399759 is an apocalyptic number.

1970399759 is a deficient number, since it is larger than the sum of its proper divisors (1).

1970399759 is an equidigital number, since it uses as much as digits as its factorization.

1970399759 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4822335, while the sum is 59.

The square root of 1970399759 is about 44389.1851580990. The cubic root of 1970399759 is about 1253.6744699526.

The spelling of 1970399759 in words is "one billion, nine hundred seventy million, three hundred ninety-nine thousand, seven hundred fifty-nine".