1970197 has 8 divisors (see below), whose sum is σ = 2021976. Its totient is φ = 1919232.

The previous prime is 1970183. The next prime is 1970201. The reversal of 1970197 is 7910791.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 998001 + 972196 = 999^2 + 986^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1970197 - 2¹¹ = 1968149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1970597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9903 + ... + 10099.

It is an arithmetic number, because the mean of its divisors is an integer number (252747).

2^1970197 is an apocalyptic number.

It is an amenable number.

1970197 is a deficient number, since it is larger than the sum of its proper divisors (51779).

1970197 is a wasteful number, since it uses less digits than its factorization.

1970197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407.

The product of its (nonzero) digits is 3969, while the sum is 34.

The square root of 1970197 is about 1403.6370613517. The cubic root of 1970197 is about 125.3631466411.

The spelling of 1970197 in words is "one million, nine hundred seventy thousand, one hundred ninety-seven".