1027845 has 48 divisors (see below), whose sum is σ = 2201472. Its totient is φ = 432000.

The previous prime is 1027841. The next prime is 1027853. The reversal of 1027845 is 5487201.

It is not a de Polignac number, because 1027845 - 2² = 1027841 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1027841) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3970 + ... + 4220.

It is an arithmetic number, because the mean of its divisors is an integer number (45864).

2^1027845 is an apocalyptic number.

1027845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1027845 is an abundant number, since it is smaller than the sum of its proper divisors (1173627).

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

1027845 is a wasteful number, since it uses less digits than its factorization.

1027845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 1027845 is about 1013.8269083034. The cubic root of 1027845 is about 100.9196825768.

The spelling of 1027845 in words is "one million, twenty-seven thousand, eight hundred forty-five".