511280747 has 8 divisors (see below), whose sum is σ = 544676160. Its totient is φ = 478533960.

The previous prime is 511280723. The next prime is 511280753. The reversal of 511280747 is 747082115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 511280747 - 2¹⁰ = 511279723 is a prime.

It is a super-2 number, since 2×511280747² = 522816004505756018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (511280767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160529 + ... + 163682.

It is an arithmetic number, because the mean of its divisors is an integer number (68084520).

Almost surely, 2^511280747 is an apocalyptic number.

511280747 is a deficient number, since it is larger than the sum of its proper divisors (33395413).

511280747 is a wasteful number, since it uses less digits than its factorization.

511280747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324313.

The product of its (nonzero) digits is 15680, while the sum is 35.

The square root of 511280747 is about 22611.5180162677. The cubic root of 511280747 is about 799.6252135088.

The spelling of 511280747 in words is "five hundred eleven million, two hundred eighty thousand, seven hundred forty-seven".