1970881 has 8 divisors (see below), whose sum is σ = 2167200. Its totient is φ = 1777440.

The previous prime is 1970873. The next prime is 1970921. The reversal of 1970881 is 1880791.

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 1970881 - 2³ = 1970873 is a prime.

It is a super-2 number, since 2×1970881² = 7768743832322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1970581) 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, 885 + ... + 2173.

It is an arithmetic number, because the mean of its divisors is an integer number (270900).

2^1970881 is an apocalyptic number.

1970881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1970881 is a deficient number, since it is larger than the sum of its proper divisors (196319).

1970881 is a wasteful number, since it uses less digits than its factorization.

1970881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439.

The product of its (nonzero) digits is 4032, while the sum is 34.

The square root of 1970881 is about 1403.8806929365. The cubic root of 1970881 is about 125.3776525461.

The spelling of 1970881 in words is "one million, nine hundred seventy thousand, eight hundred eighty-one".