1872901 has 4 divisors (see below), whose sum is σ = 1875712. Its totient is φ = 1870092.

The previous prime is 1872889. The next prime is 1872911. The reversal of 1872901 is 1092781.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1092781 = 31 ⋅35251.

It is a cyclic number.

It is not a de Polignac number, because 1872901 - 2⁹ = 1872389 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1872901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1872911) 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, 226 + ... + 1948.

It is an arithmetic number, because the mean of its divisors is an integer number (468928).

2^1872901 is an apocalyptic number.

It is an amenable number.

1872901 is a deficient number, since it is larger than the sum of its proper divisors (2811).

1872901 is a wasteful number, since it uses less digits than its factorization.

1872901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2810.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 1872901 is about 1368.5397327078. The cubic root of 1872901 is about 123.2645724986.

The spelling of 1872901 in words is "one million, eight hundred seventy-two thousand, nine hundred one".