1891652 has 12 divisors (see below), whose sum is σ = 3783360. Its totient is φ = 810696.

The previous prime is 1891639. The next prime is 1891657. The reversal of 1891652 is 2561981.

1891652 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1891657) 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 3 ways as a sum of consecutive naturals, for example, 33752 + ... + 33807.

It is an arithmetic number, because the mean of its divisors is an integer number (315280).

2^1891652 is an apocalyptic number.

It is an amenable number.

1891652 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1891652 is a wasteful number, since it uses less digits than its factorization.

1891652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67570 (or 67568 counting only the distinct ones).

The product of its digits is 4320, while the sum is 32.

The square root of 1891652 is about 1375.3734038435. The cubic root of 1891652 is about 123.6745715901.

The spelling of 1891652 in words is "one million, eight hundred ninety-one thousand, six hundred fifty-two".