4267021 has 4 divisors (see below), whose sum is σ = 4654944. Its totient is φ = 3879100.

The previous prime is 4267007. The next prime is 4267033. The reversal of 4267021 is 1207624.

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 not a de Polignac number, because 4267021 - 2⁷ = 4266893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4266983 and 4267001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4267091) 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, 193945 + ... + 193966.

It is an arithmetic number, because the mean of its divisors is an integer number (1163736).

Almost surely, 2^4267021 is an apocalyptic number.

It is an amenable number.

4267021 is a deficient number, since it is larger than the sum of its proper divisors (387923).

4267021 is a wasteful number, since it uses less digits than its factorization.

4267021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387922.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 4267021 is about 2065.6768866403. The cubic root of 4267021 is about 162.1965429387.

It can be divided in two parts, 426 and 7021, that added together give a palindrome (7447).

The spelling of 4267021 in words is "four million, two hundred sixty-seven thousand, twenty-one".