507213943 has 4 divisors (see below), whose sum is σ = 508845168. Its totient is φ = 505582720.

The previous prime is 507213929. The next prime is 507213953. The reversal of 507213943 is 349312705.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 507213943 - 2⁹ = 507213431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 507213899 and 507213908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (507213923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 815146 + ... + 815767.

It is an arithmetic number, because the mean of its divisors is an integer number (127211292).

Almost surely, 2^507213943 is an apocalyptic number.

507213943 is a deficient number, since it is larger than the sum of its proper divisors (1631225).

507213943 is a wasteful number, since it uses less digits than its factorization.

507213943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631224.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 507213943 is about 22521.4107684221. The cubic root of 507213943 is about 797.4994542110.

The spelling of 507213943 in words is "five hundred seven million, two hundred thirteen thousand, nine hundred forty-three".