970509479 has 2 divisors, whose sum is σ = 970509480. Its totient is φ = 970509478.

The previous prime is 970509457. The next prime is 970509497. The reversal of 970509479 is 974905079.

Together with next prime (970509497) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-970509479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (970509499) 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, 485254739 + 485254740.

It is an arithmetic number, because the mean of its divisors is an integer number (485254740).

Almost surely, 2^970509479 is an apocalyptic number.

970509479 is a deficient number, since it is larger than the sum of its proper divisors (1).

970509479 is an equidigital number, since it uses as much as digits as its factorization.

970509479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 714420, while the sum is 50.

The square root of 970509479 is about 31153.0011234873. The cubic root of 970509479 is about 990.0715790167.

The spelling of 970509479 in words is "nine hundred seventy million, five hundred nine thousand, four hundred seventy-nine".