890790081 has 8 divisors (see below), whose sum is σ = 1187980704. Its totient is φ = 593729760.

The previous prime is 890790079. The next prime is 890790119. The reversal of 890790081 is 180097098.

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

It is not a de Polignac number, because 890790081 - 2¹ = 890790079 is a prime.

It is a super-2 number, since 2×890790081² = 1587013936815973122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (890790001) 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 7 ways as a sum of consecutive naturals, for example, 15316 + ... + 44901.

It is an arithmetic number, because the mean of its divisors is an integer number (148497588).

Almost surely, 2^890790081 is an apocalyptic number.

It is an amenable number.

890790081 is a deficient number, since it is larger than the sum of its proper divisors (297190623).

890790081 is a wasteful number, since it uses less digits than its factorization.

890790081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65151.

The product of its (nonzero) digits is 36288, while the sum is 42.

The square root of 890790081 is about 29846.1066305138. The cubic root of 890790081 is about 962.1847237705.

The spelling of 890790081 in words is "eight hundred ninety million, seven hundred ninety thousand, eighty-one".