1970853097 has 4 divisors (see below), whose sum is σ = 1990366596. Its totient is φ = 1951339600.

The previous prime is 1970853043. The next prime is 1970853103. The reversal of 1970853097 is 7903580791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7903580791 = 1123 ⋅7037917.

It can be written as a sum of positive squares in 2 ways, for example, as 1820643561 + 150209536 = 42669^2 + 12256^2 .

It is a cyclic number.

It is not a de Polignac number, because 1970853097 - 2¹⁵ = 1970820329 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1970853097.

It is not an unprimeable number, because it can be changed into a prime (1970853037) 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, 9756598 + ... + 9756799.

It is an arithmetic number, because the mean of its divisors is an integer number (497591649).

Almost surely, 2^1970853097 is an apocalyptic number.

It is an amenable number.

1970853097 is a deficient number, since it is larger than the sum of its proper divisors (19513499).

1970853097 is a wasteful number, since it uses less digits than its factorization.

1970853097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19513498.

The product of its (nonzero) digits is 476280, while the sum is 49.

The square root of 1970853097 is about 44394.2912658824. The cubic root of 1970853097 is about 1253.7706085988.

The spelling of 1970853097 in words is "one billion, nine hundred seventy million, eight hundred fifty-three thousand, ninety-seven".