890688961 has 8 divisors (see below), whose sum is σ = 952084224. Its totient is φ = 831182880.

The previous prime is 890688959. The next prime is 890689061. The reversal of 890688961 is 169886098.

890688961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 890688961 - 2¹ = 890688959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (890686961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471321 + ... + 473206.

It is an arithmetic number, because the mean of its divisors is an integer number (119010528).

Almost surely, 2^890688961 is an apocalyptic number.

It is an amenable number.

890688961 is a deficient number, since it is larger than the sum of its proper divisors (61395263).

890688961 is a wasteful number, since it uses less digits than its factorization.

890688961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944591.

The product of its (nonzero) digits is 1492992, while the sum is 55.

The square root of 890688961 is about 29844.4125591374. The cubic root of 890688961 is about 962.1483142193.

The spelling of 890688961 in words is "eight hundred ninety million, six hundred eighty-eight thousand, nine hundred sixty-one".