506721846 has 24 divisors (see below), whose sum is σ = 1047201912. Its totient is φ = 163456800.

The previous prime is 506721841. The next prime is 506721857. The reversal of 506721846 is 648127605.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506721841) 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, 38175 + ... + 49706.

It is an arithmetic number, because the mean of its divisors is an integer number (43633413).

Almost surely, 2^506721846 is an apocalyptic number.

506721846 is an abundant number, since it is smaller than the sum of its proper divisors (540480066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

506721846 is a wasteful number, since it uses less digits than its factorization.

506721846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87948 (or 87917 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 506721846 is about 22510.4830245821. The cubic root of 506721846 is about 797.2414604658.

The spelling of 506721846 in words is "five hundred six million, seven hundred twenty-one thousand, eight hundred forty-six".