38632621 has 2 divisors, whose sum is σ = 38632622. Its totient is φ = 38632620.

The previous prime is 38632597. The next prime is 38632631. The reversal of 38632621 is 12623683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38266596 + 366025 = 6186^2 + 605^2 .

It is a cyclic number.

It is not a de Polignac number, because 38632621 - 2¹¹ = 38630573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38632631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19316310 + 19316311.

It is an arithmetic number, because the mean of its divisors is an integer number (19316311).

Almost surely, 2^38632621 is an apocalyptic number.

It is an amenable number.

38632621 is a deficient number, since it is larger than the sum of its proper divisors (1).

38632621 is an equidigital number, since it uses as much as digits as its factorization.

38632621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 31.

The square root of 38632621 is about 6215.5145402452. The cubic root of 38632621 is about 338.0529456175.

The spelling of 38632621 in words is "thirty-eight million, six hundred thirty-two thousand, six hundred twenty-one".