5491690 has 8 divisors (see below), whose sum is σ = 9885060. Its totient is φ = 2196672.

The previous prime is 5491657. The next prime is 5491709. The reversal of 5491690 is 961945.

It can be written as a sum of positive squares in 2 ways, for example, as 5368489 + 123201 = 2317^2 + 351^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×5491690² = 60317318112200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274575 + ... + 274594.

Almost surely, 2^5491690 is an apocalyptic number.

5491690 is a deficient number, since it is larger than the sum of its proper divisors (4393370).

5491690 is a wasteful number, since it uses less digits than its factorization.

5491690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549176.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 5491690 is about 2343.4355122341. The cubic root of 5491690 is about 176.4284713652.

The spelling of 5491690 in words is "five million, four hundred ninety-one thousand, six hundred ninety".