38872247 has 2 divisors, whose sum is σ = 38872248. Its totient is φ = 38872246.

The previous prime is 38872199. The next prime is 38872259. The reversal of 38872247 is 74227883.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38872247 - 2⁸ = 38871991 is a prime.

It is a super-2 number, since 2×38872247² = 3022103173658018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38872297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19436123 + 19436124.

It is an arithmetic number, because the mean of its divisors is an integer number (19436124).

Almost surely, 2^38872247 is an apocalyptic number.

38872247 is a deficient number, since it is larger than the sum of its proper divisors (1).

38872247 is an equidigital number, since it uses as much as digits as its factorization.

38872247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 150528, while the sum is 41.

The square root of 38872247 is about 6234.7611822747. The cubic root of 38872247 is about 338.7504508375.

The spelling of 38872247 in words is "thirty-eight million, eight hundred seventy-two thousand, two hundred forty-seven".