38552989 has 2 divisors, whose sum is σ = 38552990. Its totient is φ = 38552988.

The previous prime is 38552981. The next prime is 38553007. The reversal of 38552989 is 98925583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37920964 + 632025 = 6158^2 + 795^2 .

It is a cyclic number.

It is not a de Polignac number, because 38552989 - 2³ = 38552981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38552981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19276494 + 19276495.

It is an arithmetic number, because the mean of its divisors is an integer number (19276495).

Almost surely, 2^38552989 is an apocalyptic number.

It is an amenable number.

38552989 is a deficient number, since it is larger than the sum of its proper divisors (1).

38552989 is an equidigital number, since it uses as much as digits as its factorization.

38552989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 777600, while the sum is 49.

The square root of 38552989 is about 6209.1053300778. The cubic root of 38552989 is about 337.8205138110.

The spelling of 38552989 in words is "thirty-eight million, five hundred fifty-two thousand, nine hundred eighty-nine".