7352021 has 4 divisors (see below), whose sum is σ = 7362444. Its totient is φ = 7341600.

The previous prime is 7352017. The next prime is 7352027. The reversal of 7352021 is 1202537.

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 7921 + 7344100 = 89^2 + 2710^2 .

It is a cyclic number.

It is not a de Polignac number, because 7352021 - 2² = 7352017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7351984 and 7352002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7352027) 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, 4070 + ... + 5591.

It is an arithmetic number, because the mean of its divisors is an integer number (1840611).

Almost surely, 2^7352021 is an apocalyptic number.

It is an amenable number.

7352021 is a deficient number, since it is larger than the sum of its proper divisors (10423).

7352021 is an equidigital number, since it uses as much as digits as its factorization.

7352021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10422.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 7352021 is about 2711.4610452669. The cubic root of 7352021 is about 194.4474473792.

Adding to 7352021 its reverse (1202537), we get a palindrome (8554558).

The spelling of 7352021 in words is "seven million, three hundred fifty-two thousand, twenty-one".