1970997 has 16 divisors (see below), whose sum is σ = 3180672. Its totient is φ = 1059840.

The previous prime is 1970987. The next prime is 1970999. The reversal of 1970997 is 7990791.

It is not a de Polignac number, because 1970997 - 2¹² = 1966901 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1970999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2404 + ... + 3117.

It is an arithmetic number, because the mean of its divisors is an integer number (198792).

2^1970997 is an apocalyptic number.

1970997 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1970997 is a deficient number, since it is larger than the sum of its proper divisors (1209675).

1970997 is a wasteful number, since it uses less digits than its factorization.

1970997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5548.

The product of its (nonzero) digits is 35721, while the sum is 42.

The square root of 1970997 is about 1403.9220063807. The cubic root of 1970997 is about 125.3801122789.

The spelling of 1970997 in words is "one million, nine hundred seventy thousand, nine hundred ninety-seven".