728464851 has 12 divisors (see below), whose sum is σ = 1054979328. Its totient is φ = 484372944.

The previous prime is 728464831. The next prime is 728464853. The reversal of 728464851 is 158464827.

It is not a de Polignac number, because 728464851 - 2⁵ = 728464819 is a prime.

It is a super-2 number, since 2×728464851² = 1061322078284904402, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 728464797 and 728464806.

It is not an unprimeable number, because it can be changed into a prime (728464853) 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, 102220 + ... + 109113.

It is an arithmetic number, because the mean of its divisors is an integer number (87914944).

Almost surely, 2^728464851 is an apocalyptic number.

728464851 is a deficient number, since it is larger than the sum of its proper divisors (326514477).

728464851 is a wasteful number, since it uses less digits than its factorization.

728464851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211722 (or 211719 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 728464851 is about 26990.0880139358. The cubic root of 728464851 is about 899.7797201638.

The spelling of 728464851 in words is "seven hundred twenty-eight million, four hundred sixty-four thousand, eight hundred fifty-one".