2453891 has 8 divisors (see below), whose sum is σ = 2742768. Its totient is φ = 2176000.

The previous prime is 2453887. The next prime is 2453909. The reversal of 2453891 is 1983542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2453891 - 2² = 2453887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2453821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2270 + ... + 3171.

It is an arithmetic number, because the mean of its divisors is an integer number (342846).

2^2453891 is an apocalyptic number.

2453891 is a deficient number, since it is larger than the sum of its proper divisors (288877).

2453891 is a wasteful number, since it uses less digits than its factorization.

2453891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5493.

The product of its digits is 8640, while the sum is 32.

The square root of 2453891 is about 1566.4900255029. The cubic root of 2453891 is about 134.8813039914.

The spelling of 2453891 in words is "two million, four hundred fifty-three thousand, eight hundred ninety-one".