728283699 has 144 divisors (see below), whose sum is σ = 1370304000. Its totient is φ = 367960320.

The previous prime is 728283671. The next prime is 728283719. The reversal of 728283699 is 996382827.

It is a happy number.

It is not a de Polignac number, because 728283699 - 2⁵ = 728283667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (728283299) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 9218742 + ... + 9218820.

It is an arithmetic number, because the mean of its divisors is an integer number (9516000).

Almost surely, 2^728283699 is an apocalyptic number.

728283699 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

728283699 is a deficient number, since it is larger than the sum of its proper divisors (642020301).

728283699 is a wasteful number, since it uses less digits than its factorization.

728283699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 154 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 728283699 is about 26986.7319066240. The cubic root of 728283699 is about 899.7051293268.

It can be divided in two parts, 72828369 and 9, that multiplied together give a triangular number (655455321 = T₃₆₂₀₆).

The spelling of 728283699 in words is "seven hundred twenty-eight million, two hundred eighty-three thousand, six hundred ninety-nine".