289755401 has 6 divisors (see below), whose sum is σ = 313758990. Its totient is φ = 267466368.

The previous prime is 289755397. The next prime is 289755509. The reversal of 289755401 is 104557982.

It can be written as a sum of positive squares in 3 ways, for example, as 17472400 + 272283001 = 4180^2 + 16501^2 .

It is not a de Polignac number, because 289755401 - 2² = 289755397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289754401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 857096 + ... + 857433.

It is an arithmetic number, because the mean of its divisors is an integer number (52293165).

Almost surely, 2^289755401 is an apocalyptic number.

It is an amenable number.

289755401 is a deficient number, since it is larger than the sum of its proper divisors (24003589).

289755401 is a wasteful number, since it uses less digits than its factorization.

289755401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714555 (or 1714542 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 289755401 is about 17022.2031770273. The cubic root of 289755401 is about 661.7244474353.

The spelling of 289755401 in words is "two hundred eighty-nine million, seven hundred fifty-five thousand, four hundred one".