3509690 has 16 divisors (see below), whose sum is σ = 6345000. Its totient is φ = 1397760.

The previous prime is 3509689. The next prime is 3509711. The reversal of 3509690 is 969053.

It can be written as a sum of positive squares in 4 ways, for example, as 2927521 + 582169 = 1711^2 + 763^2 .

It is a super-2 number, since 2×3509690² = 24635847792200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2186 + ... + 3434.

Almost surely, 2^3509690 is an apocalyptic number.

3509690 is a deficient number, since it is larger than the sum of its proper divisors (2835310).

3509690 is a wasteful number, since it uses less digits than its factorization.

3509690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537.

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 3509690 is about 1873.4166648132. The cubic root of 3509690 is about 151.9694363756.

The spelling of 3509690 in words is "three million, five hundred nine thousand, six hundred ninety".