1873641 has 16 divisors (see below), whose sum is σ = 3115008. Its totient is φ = 973200.

The previous prime is 1873637. The next prime is 1873657. The reversal of 1873641 is 1463781.

It is a happy number.

It is not a de Polignac number, because 1873641 - 2² = 1873637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1873599 and 1873608.

It is not an unprimeable number, because it can be changed into a prime (1873681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3825 + ... + 4286.

It is an arithmetic number, because the mean of its divisors is an integer number (194688).

2^1873641 is an apocalyptic number.

1873641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1873641 is a deficient number, since it is larger than the sum of its proper divisors (1241367).

1873641 is a wasteful number, since it uses less digits than its factorization.

1873641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8132.

The product of its digits is 4032, while the sum is 30.

The square root of 1873641 is about 1368.8100671751. The cubic root of 1873641 is about 123.2808046741.

It can be divided in two parts, 187 and 3641, that added together give a triangular number (3828 = T₈₇).

The spelling of 1873641 in words is "one million, eight hundred seventy-three thousand, six hundred forty-one".