513673747 has 2 divisors, whose sum is σ = 513673748. Its totient is φ = 513673746.

The previous prime is 513673739. The next prime is 513673801. The reversal of 513673747 is 747376315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 513673747 - 2³ = 513673739 is a prime.

It is not a weakly prime, because it can be changed into another prime (513673847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256836873 + 256836874.

It is an arithmetic number, because the mean of its divisors is an integer number (256836874).

Almost surely, 2^513673747 is an apocalyptic number.

513673747 is a deficient number, since it is larger than the sum of its proper divisors (1).

513673747 is an equidigital number, since it uses as much as digits as its factorization.

513673747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 370440, while the sum is 43.

The square root of 513673747 is about 22664.3717539225. The cubic root of 513673747 is about 800.8707950303.

The spelling of 513673747 in words is "five hundred thirteen million, six hundred seventy-three thousand, seven hundred forty-seven".