2387690 has 16 divisors (see below), whose sum is σ = 4337928. Its totient is φ = 946176.

The previous prime is 2387687. The next prime is 2387729. The reversal of 2387690 is 967832.

It can be written as a sum of positive squares in 4 ways, for example, as 368449 + 2019241 = 607^2 + 1421^2 .

It is a super-2 number, since 2×2387690² = 11402127072200, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 2387690.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74 + ... + 2186.

2^2387690 is an apocalyptic number.

2387690 is a deficient number, since it is larger than the sum of its proper divisors (1950238).

2387690 is a wasteful number, since it uses less digits than its factorization.

2387690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2233.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 2387690 is about 1545.2151953692. The cubic root of 2387690 is about 133.6572886486.

The spelling of 2387690 in words is "two million, three hundred eighty-seven thousand, six hundred ninety".