234986643 has 16 divisors (see below), whose sum is σ = 349076640. Its totient is φ = 156231072.

The previous prime is 234986639. The next prime is 234986651. The reversal of 234986643 is 346689432.

It is not a de Polignac number, because 234986643 - 2² = 234986639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (234986693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1596 + ... + 21737.

It is an arithmetic number, because the mean of its divisors is an integer number (21817290).

Almost surely, 2^234986643 is an apocalyptic number.

234986643 is a deficient number, since it is larger than the sum of its proper divisors (114089997).

234986643 is a wasteful number, since it uses less digits than its factorization.

234986643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23715 (or 23709 counting only the distinct ones).

The product of its digits is 746496, while the sum is 45.

The square root of 234986643 is about 15329.2740532616. The cubic root of 234986643 is about 617.0888874073.

The spelling of 234986643 in words is "two hundred thirty-four million, nine hundred eighty-six thousand, six hundred forty-three".