38083621 has 4 divisors (see below), whose sum is σ = 40323852. Its totient is φ = 35843392.

The previous prime is 38083603. The next prime is 38083651. The reversal of 38083621 is 12638083.

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 26894596 + 11189025 = 5186^2 + 3345^2 .

It is a cyclic number.

It is not a de Polignac number, because 38083621 - 2¹⁵ = 38050853 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 (38083651) 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, 1120090 + ... + 1120123.

It is an arithmetic number, because the mean of its divisors is an integer number (10080963).

Almost surely, 2^38083621 is an apocalyptic number.

It is an amenable number.

38083621 is a deficient number, since it is larger than the sum of its proper divisors (2240231).

38083621 is a wasteful number, since it uses less digits than its factorization.

38083621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2240230.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 38083621 is about 6171.1928344527. The cubic root of 38083621 is about 336.4439668046.

The spelling of 38083621 in words is "thirty-eight million, eighty-three thousand, six hundred twenty-one".