38866523 has 2 divisors, whose sum is σ = 38866524. Its totient is φ = 38866522.

The previous prime is 38866511. The next prime is 38866537. The reversal of 38866523 is 32566883.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38866523 - 2⁶ = 38866459 is a prime.

It is a super-2 number, since 2×38866523² = 3021213220219058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38863523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19433261 + 19433262.

It is an arithmetic number, because the mean of its divisors is an integer number (19433262).

Almost surely, 2^38866523 is an apocalyptic number.

38866523 is a deficient number, since it is larger than the sum of its proper divisors (1).

38866523 is an equidigital number, since it uses as much as digits as its factorization.

38866523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 41.

The square root of 38866523 is about 6234.3021261405. The cubic root of 38866523 is about 338.7338228410.

The spelling of 38866523 in words is "thirty-eight million, eight hundred sixty-six thousand, five hundred twenty-three".