289776552 has 32 divisors (see below), whose sum is σ = 780168480. Its totient is φ = 89161920.

The previous prime is 289776551. The next prime is 289776587. The reversal of 289776552 is 255677982.

It is a junction number, because it is equal to n+sod(n) for n = 289776495 and 289776504.

It is not an unprimeable number, because it can be changed into a prime (289776551) 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, 464074 + ... + 464697.

It is an arithmetic number, because the mean of its divisors is an integer number (24380265).

Almost surely, 2^289776552 is an apocalyptic number.

It is an amenable number.

289776552 is an abundant number, since it is smaller than the sum of its proper divisors (490391928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

289776552 is a wasteful number, since it uses less digits than its factorization.

289776552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928793 (or 928789 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 51.

The square root of 289776552 is about 17022.8244424948. The cubic root of 289776552 is about 661.7405481340.

The spelling of 289776552 in words is "two hundred eighty-nine million, seven hundred seventy-six thousand, five hundred fifty-two".