2398771 has 4 divisors (see below), whose sum is σ = 2403544. Its totient is φ = 2394000.

The previous prime is 2398699. The next prime is 2398777. The reversal of 2398771 is 1778932.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2398771 - 2⁹ = 2398259 is a prime.

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 2398771.

It is not an unprimeable number, because it can be changed into a prime (2398777) 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, 1530 + ... + 2671.

It is an arithmetic number, because the mean of its divisors is an integer number (600886).

2^2398771 is an apocalyptic number.

2398771 is a deficient number, since it is larger than the sum of its proper divisors (4773).

2398771 is an equidigital number, since it uses as much as digits as its factorization.

2398771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4772.

The product of its digits is 21168, while the sum is 37.

The square root of 2398771 is about 1548.7966296451. The cubic root of 2398771 is about 133.8637324172.

The spelling of 2398771 in words is "two million, three hundred ninety-eight thousand, seven hundred seventy-one".