2387797 has 4 divisors (see below), whose sum is σ = 2391660. Its totient is φ = 2383936.

The previous prime is 2387767. The next prime is 2387807. The reversal of 2387797 is 7977832.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1153476 + 1234321 = 1074^2 + 1111^2 .

It is a 3-Lehmer number, since φ(2387797) divides (2387797-1)³.

It is a cyclic number.

It is not a de Polignac number, because 2387797 - 2¹⁹ = 1863509 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 (2387767) 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, 772 + ... + 2317.

It is an arithmetic number, because the mean of its divisors is an integer number (597915).

It is a Poulet number, since it divides 2^2387796-1.

2^2387797 is an apocalyptic number.

2387797 is the 773-rd decagonal number.

It is an amenable number.

2387797 is a deficient number, since it is larger than the sum of its proper divisors (3863).

2387797 is an equidigital number, since it uses as much as digits as its factorization.

2387797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3862.

The product of its digits is 148176, while the sum is 43.

The square root of 2387797 is about 1545.2498179906. The cubic root of 2387797 is about 133.6592851551.

The spelling of 2387797 in words is "two million, three hundred eighty-seven thousand, seven hundred ninety-seven".