850130649 has 9 divisors (see below), whose sum is σ = 1228092853. Its totient is φ = 566695452.

The previous prime is 850130627. The next prime is 850130681. The reversal of 850130649 is 946031058.

The square root of 850130649 is 29157.

It is a perfect power (a square), and thus also a powerful number.

850130649 is a `hidden beast` number, since 8 + 5 + 0 + 1 + 3 + 0 + 649 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 850130649 - 2⁷ = 850130521 is a prime.

It is a super-2 number, since 2×850130649² = 1445444240738322402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (850130609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 82612 + ... + 92330.

Almost surely, 2^850130649 is an apocalyptic number.

850130649 is the 29157-th square number.

850130649 is the 14579-th centered octagonal number.

It is an amenable number.

850130649 is a deficient number, since it is larger than the sum of its proper divisors (377962204).

850130649 is an frugal number, since it uses more digits than its factorization.

850130649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19444 (or 9722 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The cubic root of 850130649 is about 947.3167678948.

Multiplying 850130649 by its sum of digits (36), we get a square (30604703364 = 174942²).

The spelling of 850130649 in words is "eight hundred fifty million, one hundred thirty thousand, six hundred forty-nine".