728025237 has 12 divisors (see below), whose sum is σ = 1052127180. Its totient is φ = 485103168.

The previous prime is 728025227. The next prime is 728025247. The reversal of 728025237 is 732520827.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (728025227) and next prime (728025247).

It can be written as a sum of positive squares in 2 ways, for example, as 198979236 + 529046001 = 14106^2 + 23001^2 .

It is not a de Polignac number, because 728025237 - 2⁸ = 728024981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728025227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 928 + ... + 38169.

It is an arithmetic number, because the mean of its divisors is an integer number (87677265).

Almost surely, 2^728025237 is an apocalyptic number.

It is an amenable number.

728025237 is a deficient number, since it is larger than the sum of its proper divisors (324101943).

728025237 is a wasteful number, since it uses less digits than its factorization.

728025237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41172 (or 41169 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 728025237 is about 26981.9427951362. The cubic root of 728025237 is about 899.5986840401.

The spelling of 728025237 in words is "seven hundred twenty-eight million, twenty-five thousand, two hundred thirty-seven".