864849049 has 8 divisors (see below), whose sum is σ = 941760000. Its totient is φ = 791077392.

The previous prime is 864849043. The next prime is 864849113. The reversal of 864849049 is 940948468.

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

It is a cyclic number.

It is not a de Polignac number, because 864849049 - 2¹⁷ = 864717977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 864848987 and 864849005.

It is not an unprimeable number, because it can be changed into a prime (864849043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 784249 + ... + 785350.

It is an arithmetic number, because the mean of its divisors is an integer number (117720000).

Almost surely, 2^864849049 is an apocalyptic number.

It is an amenable number.

864849049 is a deficient number, since it is larger than the sum of its proper divisors (76910951).

864849049 is a wasteful number, since it uses less digits than its factorization.

864849049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569647.

The product of its (nonzero) digits is 1990656, while the sum is 52.

The square root of 864849049 is about 29408.3159837485. The cubic root of 864849049 is about 952.7525154472.

The spelling of 864849049 in words is "eight hundred sixty-four million, eight hundred forty-nine thousand, forty-nine".