1976897 has 8 divisors (see below), whose sum is σ = 2181480. Its totient is φ = 1779840.

The previous prime is 1976869. The next prime is 1976903. The reversal of 1976897 is 7986791.

It can be written as a sum of positive squares in 4 ways, for example, as 83521 + 1893376 = 289^2 + 1376^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1976897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1976837) 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, 1322 + ... + 2387.

It is an arithmetic number, because the mean of its divisors is an integer number (272685).

2^1976897 is an apocalyptic number.

It is an amenable number.

1976897 is a deficient number, since it is larger than the sum of its proper divisors (204583).

1976897 is a wasteful number, since it uses less digits than its factorization.

1976897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3763.

The product of its digits is 190512, while the sum is 47.

The square root of 1976897 is about 1406.0216925780. The cubic root of 1976897 is about 125.5050923051.

The spelling of 1976897 in words is "one million, nine hundred seventy-six thousand, eight hundred ninety-seven".