5681290 has 16 divisors (see below), whose sum is σ = 10333512. Its totient is φ = 2248704.

The previous prime is 5681279. The next prime is 5681293. The reversal of 5681290 is 921865.

It can be written as a sum of positive squares in 4 ways, for example, as 5424241 + 257049 = 2329^2 + 507^2 .

It is not an unprimeable number, because it can be changed into a prime (5681293) 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, 1959 + ... + 3898.

Almost surely, 2^5681290 is an apocalyptic number.

5681290 is a deficient number, since it is larger than the sum of its proper divisors (4652222).

5681290 is a wasteful number, since it uses less digits than its factorization.

5681290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5961.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 5681290 is about 2383.5456781862. The cubic root of 5681290 is about 178.4359343984.

The spelling of 5681290 in words is "five million, six hundred eighty-one thousand, two hundred ninety".