8945690 has 16 divisors (see below), whose sum is σ = 17341128. Its totient is φ = 3302976.

The previous prime is 8945683. The next prime is 8945707. The reversal of 8945690 is 965498.

It can be written as a sum of positive squares in 4 ways, for example, as 8082649 + 863041 = 2843^2 + 929^2 .

It is a super-2 number, since 2×8945690² = 160050739152200, which contains 22 as substring.

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

It is a Curzon number.

It is a congruent number.

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, 34277 + ... + 34536.

Almost surely, 2^8945690 is an apocalyptic number.

8945690 is a deficient number, since it is larger than the sum of its proper divisors (8395438).

8945690 is a wasteful number, since it uses less digits than its factorization.

8945690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68833.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 8945690 is about 2990.9346365309. The cubic root of 8945690 is about 207.5891328494.

The spelling of 8945690 in words is "eight million, nine hundred forty-five thousand, six hundred ninety".