35378221 has 2 divisors, whose sum is σ = 35378222. Its totient is φ = 35378220.

The previous prime is 35378197. The next prime is 35378227. The reversal of 35378221 is 12287353.

35378221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31516996 + 3861225 = 5614^2 + 1965^2 .

It is a cyclic number.

It is not a de Polignac number, because 35378221 - 2¹³ = 35370029 is a prime.

It is a super-2 number, since 2×35378221² = 2503237042249682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (35378227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17689110 + 17689111.

It is an arithmetic number, because the mean of its divisors is an integer number (17689111).

Almost surely, 2^35378221 is an apocalyptic number.

It is an amenable number.

35378221 is a deficient number, since it is larger than the sum of its proper divisors (1).

35378221 is an equidigital number, since it uses as much as digits as its factorization.

35378221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 31.

The square root of 35378221 is about 5947.9593979784. The cubic root of 35378221 is about 328.2806844100.

The spelling of 35378221 in words is "thirty-five million, three hundred seventy-eight thousand, two hundred twenty-one".