649769534 has 8 divisors (see below), whose sum is σ = 1008263160. Its totient is φ = 313681816.

The previous prime is 649769513. The next prime is 649769557. The reversal of 649769534 is 435967946.

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

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, 5601404 + ... + 5601519.

It is an arithmetic number, because the mean of its divisors is an integer number (126032895).

Almost surely, 2^649769534 is an apocalyptic number.

649769534 is a deficient number, since it is larger than the sum of its proper divisors (358493626).

649769534 is a wasteful number, since it uses less digits than its factorization.

649769534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11202954.

The product of its digits is 4898880, while the sum is 53.

The square root of 649769534 is about 25490.5773571334. The cubic root of 649769534 is about 866.1367144378.

The spelling of 649769534 in words is "six hundred forty-nine million, seven hundred sixty-nine thousand, five hundred thirty-four".