35629721 has 2 divisors, whose sum is σ = 35629722. Its totient is φ = 35629720.

The previous prime is 35629703. The next prime is 35629733. The reversal of 35629721 is 12792653.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34386496 + 1243225 = 5864^2 + 1115^2 .

It is a cyclic number.

It is not a de Polignac number, because 35629721 - 2¹⁴ = 35613337 is a prime.

It is a super-3 number, since 3×35629721³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (35629751) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17814860 + 17814861.

It is an arithmetic number, because the mean of its divisors is an integer number (17814861).

Almost surely, 2^35629721 is an apocalyptic number.

It is an amenable number.

35629721 is a deficient number, since it is larger than the sum of its proper divisors (1).

35629721 is an equidigital number, since it uses as much as digits as its factorization.

35629721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 35.

The square root of 35629721 is about 5969.0636619155. The cubic root of 35629721 is about 329.0567524347.

The spelling of 35629721 in words is "thirty-five million, six hundred twenty-nine thousand, seven hundred twenty-one".