867004649 has 4 divisors (see below), whose sum is σ = 990862464. Its totient is φ = 743146836.

The previous prime is 867004631. The next prime is 867004667. The reversal of 867004649 is 946400768.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (867004631) and next prime (867004667).

It is a cyclic number.

It is not a de Polignac number, because 867004649 - 2²⁰ = 865956073 is a prime.

It is a super-2 number, since 2×867004649² = 1503394122775226402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (867004669) by changing a digit.

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, 61928897 + ... + 61928910.

It is an arithmetic number, because the mean of its divisors is an integer number (247715616).

Almost surely, 2^867004649 is an apocalyptic number.

It is an amenable number.

867004649 is a deficient number, since it is larger than the sum of its proper divisors (123857815).

867004649 is a wasteful number, since it uses less digits than its factorization.

867004649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123857814.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 867004649 is about 29444.9426727240. The cubic root of 867004649 is about 953.5434239437.

The spelling of 867004649 in words is "eight hundred sixty-seven million, four thousand, six hundred forty-nine".