890809073 has 32 divisors (see below), whose sum is σ = 1140480000. Its totient is φ = 689735760.

The previous prime is 890809013. The next prime is 890809079. The reversal of 890809073 is 370908098.

890809073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 890809073 - 2¹⁶ = 890743537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (890809079) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 674708 + ... + 676026.

It is an arithmetic number, because the mean of its divisors is an integer number (35640000).

Almost surely, 2^890809073 is an apocalyptic number.

It is an amenable number.

890809073 is a deficient number, since it is larger than the sum of its proper divisors (249670927).

890809073 is a wasteful number, since it uses less digits than its factorization.

890809073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530 (or 1516 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 890809073 is about 29846.4247942697. The cubic root of 890809073 is about 962.1915617760.

The spelling of 890809073 in words is "eight hundred ninety million, eight hundred nine thousand, seventy-three".