507463681 has 4 divisors (see below), whose sum is σ = 509587200. Its totient is φ = 505340164.

The previous prime is 507463673. The next prime is 507463687. The reversal of 507463681 is 186364705.

It is a happy number.

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 507463681 - 2³ = 507463673 is a prime.

It is a super-2 number, since 2×507463681² = 515038775068139522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (507463687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1061401 + ... + 1061878.

It is an arithmetic number, because the mean of its divisors is an integer number (127396800).

Almost surely, 2^507463681 is an apocalyptic number.

It is an amenable number.

507463681 is a deficient number, since it is larger than the sum of its proper divisors (2123519).

507463681 is a wasteful number, since it uses less digits than its factorization.

507463681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123518.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 507463681 is about 22526.9545433909. The cubic root of 507463681 is about 797.6303215648.

The spelling of 507463681 in words is "five hundred seven million, four hundred sixty-three thousand, six hundred eighty-one".