2374821 has 6 divisors (see below), whose sum is σ = 3430310. Its totient is φ = 1583208.

The previous prime is 2374811. The next prime is 2374831. The reversal of 2374821 is 1284732.

It is an interprime number because it is at equal distance from previous prime (2374811) and next prime (2374831).

It can be written as a sum of positive squares in only one way, i.e., 1718721 + 656100 = 1311^2 + 810^2 .

It is not a de Polignac number, because 2374821 - 2¹³ = 2366629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2374811) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 131926 + ... + 131943.

2^2374821 is an apocalyptic number.

It is an amenable number.

2374821 is a deficient number, since it is larger than the sum of its proper divisors (1055489).

2374821 is a wasteful number, since it uses less digits than its factorization.

2374821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263875 (or 263872 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 2374821 is about 1541.0454243792. The cubic root of 2374821 is about 133.4167304649.

The spelling of 2374821 in words is "two million, three hundred seventy-four thousand, eight hundred twenty-one".