890468045 has 4 divisors (see below), whose sum is σ = 1068561660. Its totient is φ = 712374432.

The previous prime is 890468027. The next prime is 890468077. The reversal of 890468045 is 540864098.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 540864098 = 2 ⋅270432049.

It can be written as a sum of positive squares in 2 ways, for example, as 432764809 + 457703236 = 20803^2 + 21394^2 .

It is a cyclic number.

It is not a de Polignac number, because 890468045 - 2¹⁶ = 890402509 is a prime.

It is a super-2 number, since 2×890468045² = 1585866678332244050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 890467987 and 890468005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89046800 + ... + 89046809.

It is an arithmetic number, because the mean of its divisors is an integer number (267140415).

Almost surely, 2^890468045 is an apocalyptic number.

It is an amenable number.

890468045 is a deficient number, since it is larger than the sum of its proper divisors (178093615).

890468045 is a wasteful number, since it uses less digits than its factorization.

890468045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178093614.

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 890468045 is about 29840.7112013102. The cubic root of 890468045 is about 962.0687609963.

The spelling of 890468045 in words is "eight hundred ninety million, four hundred sixty-eight thousand, forty-five".