38872549 has 2 divisors, whose sum is σ = 38872550. Its totient is φ = 38872548.

The previous prime is 38872513. The next prime is 38872583. The reversal of 38872549 is 94527883.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32148900 + 6723649 = 5670^2 + 2593^2 .

It is a cyclic number.

It is not a de Polignac number, because 38872549 - 2⁹ = 38872037 is a prime.

It is a super-2 number, since 2×38872549² = 3022150131514802, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38872499 and 38872508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38872049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19436274 + 19436275.

It is an arithmetic number, because the mean of its divisors is an integer number (19436275).

Almost surely, 2^38872549 is an apocalyptic number.

It is an amenable number.

38872549 is a deficient number, since it is larger than the sum of its proper divisors (1).

38872549 is an equidigital number, since it uses as much as digits as its factorization.

38872549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 46.

The square root of 38872549 is about 6234.7854012789. The cubic root of 38872549 is about 338.7513280904.

The spelling of 38872549 in words is "thirty-eight million, eight hundred seventy-two thousand, five hundred forty-nine".