8435021 has 8 divisors (see below), whose sum is σ = 9659904. Its totient is φ = 7215120.

The previous prime is 8434999. The next prime is 8435047. The reversal of 8435021 is 1205348.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8435021 - 2⁶ = 8434957 is a prime.

It is a super-2 number, since 2×8435021² = 142299158540882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8435051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3716 + ... + 5538.

It is an arithmetic number, because the mean of its divisors is an integer number (1207488).

Almost surely, 2^8435021 is an apocalyptic number.

It is an amenable number.

8435021 is a deficient number, since it is larger than the sum of its proper divisors (1224883).

8435021 is a wasteful number, since it uses less digits than its factorization.

8435021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 8435021 is about 2904.3107616094. The cubic root of 8435021 is about 203.5613813916.

The spelling of 8435021 in words is "eight million, four hundred thirty-five thousand, twenty-one".