38877229 has 4 divisors (see below), whose sum is σ = 39138300. Its totient is φ = 38616160.

The previous prime is 38877221. The next prime is 38877233. The reversal of 38877229 is 92277883.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9424900 + 29452329 = 3070^2 + 5427^2 .

It is a cyclic number.

It is not a de Polignac number, because 38877229 - 2³ = 38877221 is a prime.

It is a super-2 number, since 2×38877229² = 3022877869436882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38877221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130312 + ... + 130609.

It is an arithmetic number, because the mean of its divisors is an integer number (9784575).

Almost surely, 2^38877229 is an apocalyptic number.

It is an amenable number.

38877229 is a deficient number, since it is larger than the sum of its proper divisors (261071).

38877229 is a wasteful number, since it uses less digits than its factorization.

38877229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261070.

The product of its digits is 338688, while the sum is 46.

The square root of 38877229 is about 6235.1607036226. The cubic root of 38877229 is about 338.7649220244.

The spelling of 38877229 in words is "thirty-eight million, eight hundred seventy-seven thousand, two hundred twenty-nine".