1880965 has 8 divisors (see below), whose sum is σ = 2390040. Its totient is φ = 1416192.

The previous prime is 1880959. The next prime is 1880971. The reversal of 1880965 is 5690881.

It is an interprime number because it is at equal distance from previous prime (1880959) and next prime (1880971).

It can be written as a sum of positive squares in 4 ways, for example, as 894916 + 986049 = 946^2 + 993^2 .

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 1880965 - 2⁵ = 1880933 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10980 + ... + 11149.

It is an arithmetic number, because the mean of its divisors is an integer number (298755).

2^1880965 is an apocalyptic number.

It is an amenable number.

1880965 is a deficient number, since it is larger than the sum of its proper divisors (509075).

1880965 is a wasteful number, since it uses less digits than its factorization.

1880965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22151.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 1880965 is about 1371.4827742265. The cubic root of 1880965 is about 123.4412293377.

The spelling of 1880965 in words is "one million, eight hundred eighty thousand, nine hundred sixty-five".