461721016 has 8 divisors (see below), whose sum is σ = 865726920. Its totient is φ = 230860504.

The previous prime is 461720981. The next prime is 461721047. The reversal of 461721016 is 610127164.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28857556 + ... + 28857571.

It is an arithmetic number, because the mean of its divisors is an integer number (108215865).

Almost surely, 2^461721016 is an apocalyptic number.

It is an amenable number.

461721016 is a deficient number, since it is larger than the sum of its proper divisors (404005904).

461721016 is a wasteful number, since it uses less digits than its factorization.

461721016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57715133 (or 57715129 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 461721016 is about 21487.6945250066. The cubic root of 461721016 is about 772.9057665867.

The spelling of 461721016 in words is "four hundred sixty-one million, seven hundred twenty-one thousand, sixteen".