35640427 has 2 divisors, whose sum is σ = 35640428. Its totient is φ = 35640426.

The previous prime is 35640401. The next prime is 35640463. The reversal of 35640427 is 72404653.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-35640427 is a prime.

It is not a weakly prime, because it can be changed into another prime (35640487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17820213 + 17820214.

It is an arithmetic number, because the mean of its divisors is an integer number (17820214).

Almost surely, 2^35640427 is an apocalyptic number.

35640427 is a deficient number, since it is larger than the sum of its proper divisors (1).

35640427 is an equidigital number, since it uses as much as digits as its factorization.

35640427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 35640427 is about 5969.9603851282. The cubic root of 35640427 is about 329.0897074013.

The spelling of 35640427 in words is "thirty-five million, six hundred forty thousand, four hundred twenty-seven".