4389025 has 9 divisors (see below), whose sum is σ = 5455411. Its totient is φ = 3502840.

The previous prime is 4389023. The next prime is 4389029. The reversal of 4389025 is 5209834.

The square root of 4389025 is 2095.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1580049 + 2808976 = 1257^2 + 1676^2 .

It is not a de Polignac number, because 4389025 - 2¹ = 4389023 is a prime.

It is a Duffinian number.

4389025 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4389023) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10266 + ... + 10684.

Almost surely, 2^4389025 is an apocalyptic number.

4389025 is the 2095-th square number.

4389025 is the 1048-th centered octagonal number.

It is an amenable number.

4389025 is a deficient number, since it is larger than the sum of its proper divisors (1066386).

4389025 is an frugal number, since it uses more digits than its factorization.

4389025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The cubic root of 4389025 is about 163.7278974888.

The spelling of 4389025 in words is "four million, three hundred eighty-nine thousand, twenty-five".