38234621 has 4 divisors (see below), whose sum is σ = 38446044. Its totient is φ = 38023200.

The previous prime is 38234597. The next prime is 38234629. The reversal of 38234621 is 12643283.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2102500 + 36132121 = 1450^2 + 6011^2 .

It is a cyclic number.

It is not a de Polignac number, because 38234621 - 2¹⁰ = 38233597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38234629) 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, 105440 + ... + 105801.

It is an arithmetic number, because the mean of its divisors is an integer number (9611511).

Almost surely, 2^38234621 is an apocalyptic number.

It is an amenable number.

38234621 is a deficient number, since it is larger than the sum of its proper divisors (211423).

38234621 is a wasteful number, since it uses less digits than its factorization.

38234621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211422.

The product of its digits is 6912, while the sum is 29.

The square root of 38234621 is about 6183.4149949684. The cubic root of 38234621 is about 336.8880425969. Note that the first 3 decimals are identical.

The spelling of 38234621 in words is "thirty-eight million, two hundred thirty-four thousand, six hundred twenty-one".