289898401 has 8 divisors (see below), whose sum is σ = 312352040. Its totient is φ = 267466752.

The previous prime is 289898383. The next prime is 289898419. The reversal of 289898401 is 104898982.

It is an interprime number because it is at equal distance from previous prime (289898383) and next prime (289898419).

It can be written as a sum of positive squares in 4 ways, for example, as 17648401 + 272250000 = 4201^2 + 16500^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 289898401 - 2¹¹ = 289896353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (289898431) 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, 30811 + ... + 39103.

It is an arithmetic number, because the mean of its divisors is an integer number (39044005).

Almost surely, 2^289898401 is an apocalyptic number.

It is an amenable number.

289898401 is a deficient number, since it is larger than the sum of its proper divisors (22453639).

289898401 is a wasteful number, since it uses less digits than its factorization.

289898401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10995.

The product of its (nonzero) digits is 331776, while the sum is 49.

The square root of 289898401 is about 17026.4030552551. The cubic root of 289898401 is about 661.8332875504.

The spelling of 289898401 in words is "two hundred eighty-nine million, eight hundred ninety-eight thousand, four hundred one".