38516623 has 2 divisors, whose sum is σ = 38516624. Its totient is φ = 38516622.

The previous prime is 38516603. The next prime is 38516659. The reversal of 38516623 is 32661583.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38516623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38516603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19258311 + 19258312.

It is an arithmetic number, because the mean of its divisors is an integer number (19258312).

Almost surely, 2^38516623 is an apocalyptic number.

38516623 is a deficient number, since it is larger than the sum of its proper divisors (1).

38516623 is an equidigital number, since it uses as much as digits as its factorization.

38516623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 34.

The square root of 38516623 is about 6206.1761979499. The cubic root of 38516623 is about 337.7142613871.

The spelling of 38516623 in words is "thirty-eight million, five hundred sixteen thousand, six hundred twenty-three".