2528729 has 8 divisors (see below), whose sum is σ = 3042240. Its totient is φ = 2053296.

The previous prime is 2528717. The next prime is 2528777. The reversal of 2528729 is 9278252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2528729 - 2²⁰ = 1480153 is a prime.

It is a d-powerful number, because it can be written as 2⁸ + 5⁸ + 2¹⁰ + 8⁵ + 7³ + 2²¹ + 9⁴ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2528129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9374 + ... + 9639.

It is an arithmetic number, because the mean of its divisors is an integer number (380280).

2^2528729 is an apocalyptic number.

It is an amenable number.

2528729 is a deficient number, since it is larger than the sum of its proper divisors (513511).

2528729 is a wasteful number, since it uses less digits than its factorization.

2528729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19039.

The product of its digits is 20160, while the sum is 35.

The square root of 2528729 is about 1590.1977864404. The cubic root of 2528729 is about 136.2387853744.

The spelling of 2528729 in words is "two million, five hundred twenty-eight thousand, seven hundred twenty-nine".