35947381 has 2 divisors, whose sum is σ = 35947382. Its totient is φ = 35947380.

The previous prime is 35947363. The next prime is 35947393. The reversal of 35947381 is 18374953.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29866225 + 6081156 = 5465^2 + 2466^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-35947381 is a prime.

It is a super-2 number, since 2×35947381² = 2584428401518322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (35947481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17973690 + 17973691.

It is an arithmetic number, because the mean of its divisors is an integer number (17973691).

Almost surely, 2^35947381 is an apocalyptic number.

It is an amenable number.

35947381 is a deficient number, since it is larger than the sum of its proper divisors (1).

35947381 is an equidigital number, since it uses as much as digits as its factorization.

35947381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 40.

The square root of 35947381 is about 5995.6134798701. The cubic root of 35947381 is about 330.0317722699.

The spelling of 35947381 in words is "thirty-five million, nine hundred forty-seven thousand, three hundred eighty-one".