35697121 has 2 divisors, whose sum is σ = 35697122. Its totient is φ = 35697120.

The previous prime is 35697113. The next prime is 35697149. The reversal of 35697121 is 12179653.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20205025 + 15492096 = 4495^2 + 3936^2 .

It is a cyclic number.

It is not a de Polignac number, because 35697121 - 2³ = 35697113 is a prime.

It is not a weakly prime, because it can be changed into another prime (35697721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17848560 + 17848561.

It is an arithmetic number, because the mean of its divisors is an integer number (17848561).

Almost surely, 2^35697121 is an apocalyptic number.

It is an amenable number.

35697121 is a deficient number, since it is larger than the sum of its proper divisors (1).

35697121 is an equidigital number, since it uses as much as digits as its factorization.

35697121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11340, while the sum is 34.

The square root of 35697121 is about 5974.7067710474. The cubic root of 35697121 is about 329.2641116688.

The spelling of 35697121 in words is "thirty-five million, six hundred ninety-seven thousand, one hundred twenty-one".