289616631 has 8 divisors (see below), whose sum is σ = 390808320. Its totient is φ = 190751352.

The previous prime is 289616629. The next prime is 289616633. The reversal of 289616631 is 136616982.

It is an interprime number because it is at equal distance from previous prime (289616629) and next prime (289616633).

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

It is not a de Polignac number, because 289616631 - 2¹ = 289616629 is a prime.

It is a super-5 number, since 5×289616631⁵ (a number of 44 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289616633) 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, 581311 + ... + 581808.

It is an arithmetic number, because the mean of its divisors is an integer number (48851040).

Almost surely, 2^289616631 is an apocalyptic number.

289616631 is a deficient number, since it is larger than the sum of its proper divisors (101191689).

289616631 is a wasteful number, since it uses less digits than its factorization.

289616631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163205.

The product of its digits is 93312, while the sum is 42.

The square root of 289616631 is about 17018.1265420140. The cubic root of 289616631 is about 661.6187926146.

The spelling of 289616631 in words is "two hundred eighty-nine million, six hundred sixteen thousand, six hundred thirty-one".