38774473 has 2 divisors, whose sum is σ = 38774474. Its totient is φ = 38774472.

The previous prime is 38774471. The next prime is 38774507. The reversal of 38774473 is 37447783.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37847104 + 927369 = 6152^2 + 963^2 .

It is a cyclic number.

It is not a de Polignac number, because 38774473 - 2¹ = 38774471 is a prime.

Together with 38774471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (38774471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19387236 + 19387237.

It is an arithmetic number, because the mean of its divisors is an integer number (19387237).

Almost surely, 2^38774473 is an apocalyptic number.

It is an amenable number.

38774473 is a deficient number, since it is larger than the sum of its proper divisors (1).

38774473 is an equidigital number, since it uses as much as digits as its factorization.

38774473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 395136, while the sum is 43.

The square root of 38774473 is about 6226.9152073880. The cubic root of 38774473 is about 338.4661966685.

The spelling of 38774473 in words is "thirty-eight million, seven hundred seventy-four thousand, four hundred seventy-three".