289387692 has 36 divisors (see below), whose sum is σ = 798009576. Its totient is φ = 87693120.

The previous prime is 289387649. The next prime is 289387699. The reversal of 289387692 is 296783982.

It is a happy number.

289387692 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (289387699) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 364993 + ... + 365784.

Almost surely, 2^289387692 is an apocalyptic number.

289387692 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

289387692 is an abundant number, since it is smaller than the sum of its proper divisors (508621884).

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

289387692 is a wasteful number, since it uses less digits than its factorization.

289387692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730798 (or 730793 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 289387692 is about 17011.3988842776. The cubic root of 289387692 is about 661.4444123500. Note that the first 4 decimals are identical.

The spelling of 289387692 in words is "two hundred eighty-nine million, three hundred eighty-seven thousand, six hundred ninety-two".