890688897 has 48 divisors (see below), whose sum is σ = 1567488000. Its totient is φ = 476023392.

The previous prime is 890688881. The next prime is 890688917. The reversal of 890688897 is 798886098.

It is not a de Polignac number, because 890688897 - 2⁴ = 890688881 is a prime.

It is a super-2 number, since 2×890688897² = 1586653422478153218, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (890688697) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 89854 + ... + 99272.

It is an arithmetic number, because the mean of its divisors is an integer number (32656000).

Almost surely, 2^890688897 is an apocalyptic number.

It is an amenable number.

890688897 is a deficient number, since it is larger than the sum of its proper divisors (676799103).

890688897 is a wasteful number, since it uses less digits than its factorization.

890688897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9530 (or 9527 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 63.

The square root of 890688897 is about 29844.4114869099. The cubic root of 890688897 is about 962.1482911744.

The spelling of 890688897 in words is "eight hundred ninety million, six hundred eighty-eight thousand, eight hundred ninety-seven".