38772247 has 2 divisors, whose sum is σ = 38772248. Its totient is φ = 38772246.

The previous prime is 38772193. The next prime is 38772259. The reversal of 38772247 is 74227783.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38772247 - 2¹⁵ = 38739479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38772287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19386123 + 19386124.

It is an arithmetic number, because the mean of its divisors is an integer number (19386124).

Almost surely, 2^38772247 is an apocalyptic number.

38772247 is a deficient number, since it is larger than the sum of its proper divisors (1).

38772247 is an equidigital number, since it uses as much as digits as its factorization.

38772247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 131712, while the sum is 40.

The square root of 38772247 is about 6226.7364646338. The cubic root of 38772247 is about 338.4597195534.

The spelling of 38772247 in words is "thirty-eight million, seven hundred seventy-two thousand, two hundred forty-seven".