7262021 has 8 divisors (see below), whose sum is σ = 7868280. Its totient is φ = 6662592.

The previous prime is 7261999. The next prime is 7262023. The reversal of 7262021 is 1202627.

It can be written as a sum of positive squares in 4 ways, for example, as 784996 + 6477025 = 886^2 + 2545^2 .

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 7262021 - 2¹⁸ = 6999877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7261984 and 7262002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7262023) 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, 635 + ... + 3863.

It is an arithmetic number, because the mean of its divisors is an integer number (983535).

Almost surely, 2^7262021 is an apocalyptic number.

It is an amenable number.

7262021 is a deficient number, since it is larger than the sum of its proper divisors (606259).

7262021 is a wasteful number, since it uses less digits than its factorization.

7262021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3415.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 7262021 is about 2694.8137226903. The cubic root of 7262021 is about 193.6507426385.

Adding to 7262021 its reverse (1202627), we get a palindrome (8464648).

The spelling of 7262021 in words is "seven million, two hundred sixty-two thousand, twenty-one".