505047667 has 4 divisors (see below), whose sum is σ = 505111096. Its totient is φ = 504984240.

The previous prime is 505047659. The next prime is 505047703. The reversal of 505047667 is 766740505.

It is a happy number.

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 505047667 - 2³ = 505047659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505047617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17709 + ... + 36382.

It is an arithmetic number, because the mean of its divisors is an integer number (126277774).

Almost surely, 2^505047667 is an apocalyptic number.

505047667 is a deficient number, since it is larger than the sum of its proper divisors (63429).

505047667 is an equidigital number, since it uses as much as digits as its factorization.

505047667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63428.

The product of its (nonzero) digits is 176400, while the sum is 40.

The square root of 505047667 is about 22473.2656060484. The cubic root of 505047667 is about 796.3624788467.

The spelling of 505047667 in words is "five hundred five million, forty-seven thousand, six hundred sixty-seven".