38522993 has 4 divisors (see below), whose sum is σ = 38722788. Its totient is φ = 38323200.

The previous prime is 38522983. The next prime is 38523019. The reversal of 38522993 is 39922583.

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 11607649 + 26915344 = 3407^2 + 5188^2 .

It is a cyclic number.

It is not a de Polignac number, because 38522993 - 2⁴ = 38522977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38522993.

It is not an unprimeable number, because it can be changed into a prime (38522963) 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, 99608 + ... + 99993.

It is an arithmetic number, because the mean of its divisors is an integer number (9680697).

Almost surely, 2^38522993 is an apocalyptic number.

It is an amenable number.

38522993 is a deficient number, since it is larger than the sum of its proper divisors (199795).

38522993 is a wasteful number, since it uses less digits than its factorization.

38522993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199794.

The product of its digits is 116640, while the sum is 41.

The square root of 38522993 is about 6206.6893751822. The cubic root of 38522993 is about 337.7328777757.

The spelling of 38522993 in words is "thirty-eight million, five hundred twenty-two thousand, nine hundred ninety-three".