289391377 has 8 divisors (see below), whose sum is σ = 326586240. Its totient is φ = 254010960.

The previous prime is 289391371. The next prime is 289391411. The reversal of 289391377 is 773193982.

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 289391377 - 2¹¹ = 289389329 is a prime.

It is a super-2 number, since 2×289391377² = 167494738163912258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 289391377.

It is not an unprimeable number, because it can be changed into a prime (289391371) 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, 453273 + ... + 453910.

It is an arithmetic number, because the mean of its divisors is an integer number (40823280).

Almost surely, 2^289391377 is an apocalyptic number.

It is an amenable number.

289391377 is a deficient number, since it is larger than the sum of its proper divisors (37194863).

289391377 is a wasteful number, since it uses less digits than its factorization.

289391377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907223.

The product of its digits is 571536, while the sum is 49.

The square root of 289391377 is about 17011.5071936616. The cubic root of 289391377 is about 661.4472199012.

The spelling of 289391377 in words is "two hundred eighty-nine million, three hundred ninety-one thousand, three hundred seventy-seven".