728362135 has 4 divisors (see below), whose sum is σ = 874034568. Its totient is φ = 582689704.

The previous prime is 728362123. The next prime is 728362147. The reversal of 728362135 is 531263827.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (728362123) and next prime (728362147).

It is a cyclic number.

It is not a de Polignac number, because 728362135 - 2¹⁵ = 728329367 is a prime.

It is a super-2 number, since 2×728362135² = 1061022799403516450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 728362094 and 728362103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72836209 + ... + 72836218.

It is an arithmetic number, because the mean of its divisors is an integer number (218508642).

Almost surely, 2^728362135 is an apocalyptic number.

728362135 is a deficient number, since it is larger than the sum of its proper divisors (145672433).

728362135 is a wasteful number, since it uses less digits than its factorization.

728362135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145672432.

The product of its digits is 60480, while the sum is 37.

The square root of 728362135 is about 26988.1851001508. The cubic root of 728362135 is about 899.7374275179.

The spelling of 728362135 in words is "seven hundred twenty-eight million, three hundred sixty-two thousand, one hundred thirty-five".