6950021 has 4 divisors (see below), whose sum is σ = 7484652. Its totient is φ = 6415392.

The previous prime is 6949993. The next prime is 6950057. The reversal of 6950021 is 1200596.

6950021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4669921 + 2280100 = 2161^2 + 1510^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6950021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6950081) 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, 267296 + ... + 267321.

It is an arithmetic number, because the mean of its divisors is an integer number (1871163).

Almost surely, 2^6950021 is an apocalyptic number.

It is an amenable number.

6950021 is a deficient number, since it is larger than the sum of its proper divisors (534631).

6950021 is a wasteful number, since it uses less digits than its factorization.

6950021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534630.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 6950021 is about 2636.2892481668. The cubic root of 6950021 is about 190.8367619291.

The spelling of 6950021 in words is "six million, nine hundred fifty thousand, twenty-one".