1897253 has 4 divisors (see below), whose sum is σ = 1912320. Its totient is φ = 1882188.

The previous prime is 1897243. The next prime is 1897277. The reversal of 1897253 is 3527981.

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.

It is a cyclic number.

It is not a de Polignac number, because 1897253 - 2⁴ = 1897237 is a prime.

It is a d-powerful number, because it can be written as 1 + 8⁴ + 9³ + 7⁷ + 2²⁰ + 5⁴ + 3⁹ .

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1897243) 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, 7343 + ... + 7596.

It is an arithmetic number, because the mean of its divisors is an integer number (478080).

2^1897253 is an apocalyptic number.

It is an amenable number.

1897253 is a deficient number, since it is larger than the sum of its proper divisors (15067).

1897253 is a wasteful number, since it uses less digits than its factorization.

1897253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15066.

The product of its digits is 15120, while the sum is 35.

The square root of 1897253 is about 1377.4080731577. The cubic root of 1897253 is about 123.7965141609.

The spelling of 1897253 in words is "one million, eight hundred ninety-seven thousand, two hundred fifty-three".