728337807 has 12 divisors (see below), whose sum is σ = 1053390520. Its totient is φ = 484936848.

The previous prime is 728337791. The next prime is 728337821. The reversal of 728337807 is 708733827.

It is not a de Polignac number, because 728337807 - 2⁴ = 728337791 is a prime.

It is a super-2 number, since 2×728337807² = 1060951922211138498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728337707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44332 + ... + 58497.

Almost surely, 2^728337807 is an apocalyptic number.

728337807 is a deficient number, since it is larger than the sum of its proper divisors (325052713).

728337807 is a wasteful number, since it uses less digits than its factorization.

728337807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103622 (or 103619 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The square root of 728337807 is about 26987.7343806404. The cubic root of 728337807 is about 899.7274100395.

The spelling of 728337807 in words is "seven hundred twenty-eight million, three hundred thirty-seven thousand, eight hundred seven".