867884949 has 12 divisors (see below), whose sum is σ = 1300042016. Its totient is φ = 578589804.

The previous prime is 867884929. The next prime is 867884951. The reversal of 867884949 is 949488768.

867884949 is a `hidden beast` number, since 8 + 67 + 88 + 494 + 9 = 666.

It is not a de Polignac number, because 867884949 - 2¹¹ = 867882901 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867884929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1785529 + ... + 1786014.

Almost surely, 2^867884949 is an apocalyptic number.

It is an amenable number.

867884949 is a deficient number, since it is larger than the sum of its proper divisors (432157067).

867884949 is an equidigital number, since it uses as much as digits as its factorization.

867884949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3571558 (or 3571546 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 63.

The square root of 867884949 is about 29459.8871179100. The cubic root of 867884949 is about 953.8660367252.

The spelling of 867884949 in words is "eight hundred sixty-seven million, eight hundred eighty-four thousand, nine hundred forty-nine".