890288668 has 6 divisors (see below), whose sum is σ = 1558005176. Its totient is φ = 445144332.

The previous prime is 890288653. The next prime is 890288687. The reversal of 890288668 is 866882098.

It is a super-2 number, since 2×890288668² = 1585227824738428448, 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 as a sum of consecutive naturals, namely, 111286080 + ... + 111286087.

Almost surely, 2^890288668 is an apocalyptic number.

It is an amenable number.

890288668 is a deficient number, since it is larger than the sum of its proper divisors (667716508).

890288668 is a wasteful number, since it uses less digits than its factorization.

890288668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222572171 (or 222572169 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 55.

The square root of 890288668 is about 29837.7054747848. The cubic root of 890288668 is about 962.0041565454.

The spelling of 890288668 in words is "eight hundred ninety million, two hundred eighty-eight thousand, six hundred sixty-eight".