234864721 has 8 divisors (see below), whose sum is σ = 289064384. Its totient is φ = 185826960.

The previous prime is 234864713. The next prime is 234864731. The reversal of 234864721 is 127468432.

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

It is a cyclic number.

It is not a de Polignac number, because 234864721 - 2³ = 234864713 is a prime.

It is a super-2 number, since 2×234864721² = 110322874340815682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (234864731) 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, 1290375 + ... + 1290556.

It is an arithmetic number, because the mean of its divisors is an integer number (36133048).

Almost surely, 2^234864721 is an apocalyptic number.

It is an amenable number.

234864721 is a deficient number, since it is larger than the sum of its proper divisors (54199663).

234864721 is a wasteful number, since it uses less digits than its factorization.

234864721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2580951.

The product of its digits is 64512, while the sum is 37.

The square root of 234864721 is about 15325.2967671103. The cubic root of 234864721 is about 616.9821441385.

The spelling of 234864721 in words is "two hundred thirty-four million, eight hundred sixty-four thousand, seven hundred twenty-one".