1871064 has 48 divisors (see below), whose sum is σ = 5460000. Its totient is φ = 575424.

The previous prime is 1871057. The next prime is 1871081. The reversal of 1871064 is 4601781.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64 + ... + 1935.

It is an arithmetic number, because the mean of its divisors is an integer number (113750).

2^1871064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1871064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2730000).

1871064 is an abundant number, since it is smaller than the sum of its proper divisors (3588936).

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

1871064 is a wasteful number, since it uses less digits than its factorization.

1871064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2024 (or 2017 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 1871064 is about 1367.8684147242. The cubic root of 1871064 is about 123.2242587301.

The spelling of 1871064 in words is "one million, eight hundred seventy-one thousand, sixty-four".