35090021 has 4 divisors (see below), whose sum is σ = 35906112. Its totient is φ = 34273932.

The previous prime is 35089987. The next prime is 35090039. The reversal of 35090021 is 12009053.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-35090021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 35089975 and 35090002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35090071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407981 + ... + 408066.

It is an arithmetic number, because the mean of its divisors is an integer number (8976528).

Almost surely, 2^35090021 is an apocalyptic number.

It is an amenable number.

35090021 is a deficient number, since it is larger than the sum of its proper divisors (816091).

35090021 is an equidigital number, since it uses as much as digits as its factorization.

35090021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816090.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 35090021 is about 5923.6830603941. The cubic root of 35090021 is about 327.3868334601.

Adding to 35090021 its reverse (12009053), we get a palindrome (47099074).

The spelling of 35090021 in words is "thirty-five million, ninety thousand, twenty-one".