289623532 has 12 divisors (see below), whose sum is σ = 552917736. Its totient is φ = 131647040.

The previous prime is 289623491. The next prime is 289623539. The reversal of 289623532 is 235326982.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (289623539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3291133 + ... + 3291220.

It is an arithmetic number, because the mean of its divisors is an integer number (46076478).

Almost surely, 2^289623532 is an apocalyptic number.

289623532 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

289623532 is a deficient number, since it is larger than the sum of its proper divisors (263294204).

289623532 is a wasteful number, since it uses less digits than its factorization.

289623532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6582368 (or 6582366 counting only the distinct ones).

The product of its digits is 155520, while the sum is 40.

The square root of 289623532 is about 17018.3292952040. The cubic root of 289623532 is about 661.6240476017.

The spelling of 289623532 in words is "two hundred eighty-nine million, six hundred twenty-three thousand, five hundred thirty-two".