38988923 has 2 divisors, whose sum is σ = 38988924. Its totient is φ = 38988922.

The previous prime is 38988889. The next prime is 38988941. The reversal of 38988923 is 32988983.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38988923 is a prime.

It is a super-2 number, since 2×38988923² = 3040272233399858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38988023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19494461 + 19494462.

It is an arithmetic number, because the mean of its divisors is an integer number (19494462).

Almost surely, 2^38988923 is an apocalyptic number.

38988923 is a deficient number, since it is larger than the sum of its proper divisors (1).

38988923 is an equidigital number, since it uses as much as digits as its factorization.

38988923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 746496, while the sum is 50.

The square root of 38988923 is about 6244.1110656362. Note that the first 3 decimals coincide. The cubic root of 38988923 is about 339.0890348945.

It can be divided in two parts, 3898 and 8923, that added together give a palindrome (12821).

The spelling of 38988923 in words is "thirty-eight million, nine hundred eighty-eight thousand, nine hundred twenty-three".