1970984497 has 4 divisors (see below), whose sum is σ = 1975803940. Its totient is φ = 1966165056.

The previous prime is 1970984479. The next prime is 1970984531. The reversal of 1970984497 is 7944890791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7944890791 = 18787 ⋅422893.

It can be written as a sum of positive squares in 2 ways, for example, as 981944896 + 989039601 = 31336^2 + 31449^2 .

It is a cyclic number.

It is not a de Polignac number, because 1970984497 - 2²⁷ = 1836766769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1970984447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2409108 + ... + 2409925.

It is an arithmetic number, because the mean of its divisors is an integer number (493950985).

Almost surely, 2^1970984497 is an apocalyptic number.

It is an amenable number.

1970984497 is a deficient number, since it is larger than the sum of its proper divisors (4819443).

1970984497 is an equidigital number, since it uses as much as digits as its factorization.

1970984497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4819442.

The product of its (nonzero) digits is 4572288, while the sum is 58.

The square root of 1970984497 is about 44395.7711612266. The cubic root of 1970984497 is about 1253.7984716254.

The spelling of 1970984497 in words is "one billion, nine hundred seventy million, nine hundred eighty-four thousand, four hundred ninety-seven".