728152 has 8 divisors (see below), whose sum is σ = 1365300. Its totient is φ = 364072.

The previous prime is 728131. The next prime is 728173. The reversal of 728152 is 251827.

It is an interprime number because it is at equal distance from previous prime (728131) and next prime (728173).

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

728152 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45502 + ... + 45517.

2⁷²⁸¹⁵² is an apocalyptic number.

It is an amenable number.

728152 is a deficient number, since it is larger than the sum of its proper divisors (637148).

728152 is a wasteful number, since it uses less digits than its factorization.

728152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91025 (or 91021 counting only the distinct ones).

The product of its digits is 1120, while the sum is 25.

The square root of 728152 is about 853.3182290330. The cubic root of 728152 is about 89.9650893407.

Adding to 728152 its reverse (251827), we get a palindrome (979979).

The spelling of 728152 in words is "seven hundred twenty-eight thousand, one hundred fifty-two".