507649 has 4 divisors (see below), whose sum is σ = 510400. Its totient is φ = 504900.

The previous prime is 507641. The next prime is 507667. The reversal of 507649 is 946705.

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 a cyclic number.

It is not a de Polignac number, because 507649 - 2³ = 507641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 507649.

It is not an unprimeable number, because it can be changed into a prime (507641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1077 + ... + 1474.

It is an arithmetic number, because the mean of its divisors is an integer number (127600).

2⁵⁰⁷⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

507649 is a deficient number, since it is larger than the sum of its proper divisors (2751).

507649 is a wasteful number, since it uses less digits than its factorization.

507649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2750.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 507649 is about 712.4949122625. The cubic root of 507649 is about 79.7727404416.

It can be divided in two parts, 507 and 649, that added together give a square (1156 = 34²).

The spelling of 507649 in words is "five hundred seven thousand, six hundred forty-nine".