890779653 has 48 divisors (see below), whose sum is σ = 1379710080. Its totient is φ = 567648000.

The previous prime is 890779619. The next prime is 890779657. The reversal of 890779653 is 356977098.

It is a de Polignac number, because none of the positive numbers 2^k-890779653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 890779653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890779657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5899128 + ... + 5899278.

It is an arithmetic number, because the mean of its divisors is an integer number (28743960).

Almost surely, 2^890779653 is an apocalyptic number.

It is an amenable number.

890779653 is a deficient number, since it is larger than the sum of its proper divisors (488930427).

890779653 is a wasteful number, since it uses less digits than its factorization.

890779653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 54.

The square root of 890779653 is about 29845.9319338499. The cubic root of 890779653 is about 962.1809691629.

The spelling of 890779653 in words is "eight hundred ninety million, seven hundred seventy-nine thousand, six hundred fifty-three".