35790721 has 2 divisors, whose sum is σ = 35790722. Its totient is φ = 35790720.

The previous prime is 35790707. The next prime is 35790731. The reversal of 35790721 is 12709753.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34386496 + 1404225 = 5864^2 + 1185^2 .

It is a cyclic number.

It is not a de Polignac number, because 35790721 - 2¹⁷ = 35659649 is a prime.

It is not a weakly prime, because it can be changed into another prime (35790701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17895360 + 17895361.

It is an arithmetic number, because the mean of its divisors is an integer number (17895361).

Almost surely, 2^35790721 is an apocalyptic number.

It is an amenable number.

35790721 is a deficient number, since it is larger than the sum of its proper divisors (1).

35790721 is an equidigital number, since it uses as much as digits as its factorization.

35790721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 35790721 is about 5982.5346635018. The cubic root of 35790721 is about 329.5516439462.

The spelling of 35790721 in words is "thirty-five million, seven hundred ninety thousand, seven hundred twenty-one".