512421867 has 12 divisors (see below), whose sum is σ = 744042624. Its totient is φ = 339824880.

The previous prime is 512421863. The next prime is 512421869. The reversal of 512421867 is 768124215.

It is not a de Polignac number, because 512421867 - 2² = 512421863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (512421863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147328 + ... + 150765.

It is an arithmetic number, because the mean of its divisors is an integer number (62003552).

Almost surely, 2^512421867 is an apocalyptic number.

512421867 is a deficient number, since it is larger than the sum of its proper divisors (231620757).

512421867 is a wasteful number, since it uses less digits than its factorization.

512421867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298290 (or 298287 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 512421867 is about 22636.7371102816. The cubic root of 512421867 is about 800.2196620760.

The spelling of 512421867 in words is "five hundred twelve million, four hundred twenty-one thousand, eight hundred sixty-seven".