38356261 has 2 divisors, whose sum is σ = 38356262. Its totient is φ = 38356260.

The previous prime is 38356247. The next prime is 38356321. The reversal of 38356261 is 16265383.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26071236 + 12285025 = 5106^2 + 3505^2 .

It is a cyclic number.

It is not a de Polignac number, because 38356261 - 2⁹ = 38355749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38356061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19178130 + 19178131.

It is an arithmetic number, because the mean of its divisors is an integer number (19178131).

Almost surely, 2^38356261 is an apocalyptic number.

It is an amenable number.

38356261 is a deficient number, since it is larger than the sum of its proper divisors (1).

38356261 is an equidigital number, since it uses as much as digits as its factorization.

38356261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 34.

The square root of 38356261 is about 6193.2431730072. The cubic root of 38356261 is about 337.2449240481.

It can be divided in two parts, 383 and 56261, that added together give a square (56644 = 238²).

The spelling of 38356261 in words is "thirty-eight million, three hundred fifty-six thousand, two hundred sixty-one".