728654519 has 2 divisors, whose sum is σ = 728654520. Its totient is φ = 728654518.

The previous prime is 728654497. The next prime is 728654569. The reversal of 728654519 is 915456827.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 728654519 - 2¹² = 728650423 is a prime.

It is a super-2 number, since 2×728654519² = 1061874816118242722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (728654569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364327259 + 364327260.

It is an arithmetic number, because the mean of its divisors is an integer number (364327260).

Almost surely, 2^728654519 is an apocalyptic number.

728654519 is a deficient number, since it is larger than the sum of its proper divisors (1).

728654519 is an equidigital number, since it uses as much as digits as its factorization.

728654519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 47.

The square root of 728654519 is about 26993.6014455278. The cubic root of 728654519 is about 899.8578042839.

The spelling of 728654519 in words is "seven hundred twenty-eight million, six hundred fifty-four thousand, five hundred nineteen".