890351693 has 16 divisors (see below), whose sum is σ = 1175347584. Its totient is φ = 652968960.

The previous prime is 890351681. The next prime is 890351701. The reversal of 890351693 is 396153098.

It is not a de Polignac number, because 890351693 - 2¹⁴ = 890335309 is a prime.

It is a super-2 number, since 2×890351693² = 1585452274455932498, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890351633) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 338780 + ... + 341397.

It is an arithmetic number, because the mean of its divisors is an integer number (73459224).

Almost surely, 2^890351693 is an apocalyptic number.

It is an amenable number.

890351693 is a deficient number, since it is larger than the sum of its proper divisors (284995891).

890351693 is a wasteful number, since it uses less digits than its factorization.

890351693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680212.

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 890351693 is about 29838.7615862321. The cubic root of 890351693 is about 962.0268566290.

The spelling of 890351693 in words is "eight hundred ninety million, three hundred fifty-one thousand, six hundred ninety-three".