1881837 has 12 divisors (see below), whose sum is σ = 2836704. Its totient is φ = 1199880.

The previous prime is 1881823. The next prime is 1881851. The reversal of 1881837 is 7381881.

It is an interprime number because it is at equal distance from previous prime (1881823) and next prime (1881851).

It is not a de Polignac number, because 1881837 - 2⁴ = 1881821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1881037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4339 + ... + 4752.

It is an arithmetic number, because the mean of its divisors is an integer number (236392).

2^1881837 is an apocalyptic number.

It is an amenable number.

1881837 is a deficient number, since it is larger than the sum of its proper divisors (954867).

1881837 is a wasteful number, since it uses less digits than its factorization.

1881837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9120 (or 9117 counting only the distinct ones).

The product of its digits is 10752, while the sum is 36.

The square root of 1881837 is about 1371.8006414928. The cubic root of 1881837 is about 123.4603018391.

It can be divided in two parts, 188 and 1837, that added together give a square (2025 = 45²).

The spelling of 1881837 in words is "one million, eight hundred eighty-one thousand, eight hundred thirty-seven".