4261289 has 4 divisors (see below), whose sum is σ = 4408260. Its totient is φ = 4114320.

The previous prime is 4261273. The next prime is 4261319. The reversal of 4261289 is 9821624.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1960000 + 2301289 = 1400^2 + 1517^2 .

It is a cyclic number.

It is not a de Polignac number, because 4261289 - 2⁴ = 4261273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4261219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73442 + ... + 73499.

It is an arithmetic number, because the mean of its divisors is an integer number (1102065).

Almost surely, 2^4261289 is an apocalyptic number.

It is an amenable number.

4261289 is a deficient number, since it is larger than the sum of its proper divisors (146971).

4261289 is a wasteful number, since it uses less digits than its factorization.

4261289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146970.

The product of its digits is 6912, while the sum is 32.

The square root of 4261289 is about 2064.2889817077. The cubic root of 4261289 is about 162.1238827857.

The spelling of 4261289 in words is "four million, two hundred sixty-one thousand, two hundred eighty-nine".