461728719 has 6 divisors (see below), whose sum is σ = 666941496. Its totient is φ = 307819140.

The previous prime is 461728651. The next prime is 461728727. The reversal of 461728719 is 917827164.

It is a happy number.

461728719 is a `hidden beast` number, since 4 + 617 + 28 + 7 + 1 + 9 = 666.

It is not a de Polignac number, because 461728719 - 2¹⁹ = 461204431 is a prime.

It is a super-2 number, since 2×461728719² = 426386819898761922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461728759) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25651587 + ... + 25651604.

It is an arithmetic number, because the mean of its divisors is an integer number (111156916).

Almost surely, 2^461728719 is an apocalyptic number.

461728719 is a deficient number, since it is larger than the sum of its proper divisors (205212777).

461728719 is a wasteful number, since it uses less digits than its factorization.

461728719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51303197 (or 51303194 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 461728719 is about 21487.8737663828. The cubic root of 461728719 is about 772.9100647521.

The spelling of 461728719 in words is "four hundred sixty-one million, seven hundred twenty-eight thousand, seven hundred nineteen".