1873961 has 4 divisors (see below), whose sum is σ = 1984212. Its totient is φ = 1763712.

The previous prime is 1873889. The next prime is 1873967. The reversal of 1873961 is 1693781.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1693781 = 83 ⋅20407.

It can be written as a sum of positive squares in 2 ways, for example, as 1755625 + 118336 = 1325^2 + 344^2 .

It is a cyclic number.

It is not a de Polignac number, because 1873961 - 2¹⁴ = 1857577 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1873967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55100 + ... + 55133.

It is an arithmetic number, because the mean of its divisors is an integer number (496053).

2^1873961 is an apocalyptic number.

It is an amenable number.

1873961 is a deficient number, since it is larger than the sum of its proper divisors (110251).

1873961 is a wasteful number, since it uses less digits than its factorization.

1873961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110250.

The product of its digits is 9072, while the sum is 35.

The square root of 1873961 is about 1368.9269520321. The cubic root of 1873961 is about 123.2878226695.

The spelling of 1873961 in words is "one million, eight hundred seventy-three thousand, nine hundred sixty-one".