7037021 has 4 divisors (see below), whose sum is σ = 7152444. Its totient is φ = 6921600.

The previous prime is 7037003. The next prime is 7037029. The reversal of 7037021 is 1207307.

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 2992900 + 4044121 = 1730^2 + 2011^2 .

It is a cyclic number.

It is not a de Polignac number, because 7037021 - 2⁶ = 7036957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7036984 and 7037002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7037029) 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, 57620 + ... + 57741.

It is an arithmetic number, because the mean of its divisors is an integer number (1788111).

Almost surely, 2^7037021 is an apocalyptic number.

It is an amenable number.

7037021 is a deficient number, since it is larger than the sum of its proper divisors (115423).

7037021 is a wasteful number, since it uses less digits than its factorization.

7037021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115422.

The product of its (nonzero) digits is 294, while the sum is 20.

The square root of 7037021 is about 2652.7383964500. The cubic root of 7037021 is about 191.6297570599.

The spelling of 7037021 in words is "seven million, thirty-seven thousand, twenty-one".