7020989 has 4 divisors (see below), whose sum is σ = 7051356. Its totient is φ = 6990624.

The previous prime is 7020971. The next prime is 7020991. The reversal of 7020989 is 9890207.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9890207 = 23 ⋅430009.

It can be written as a sum of positive squares in 2 ways, for example, as 1776889 + 5244100 = 1333^2 + 2290^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7020989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7020289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14834 + ... + 15299.

It is an arithmetic number, because the mean of its divisors is an integer number (1762839).

Almost surely, 2^7020989 is an apocalyptic number.

It is an amenable number.

7020989 is a deficient number, since it is larger than the sum of its proper divisors (30367).

7020989 is a wasteful number, since it uses less digits than its factorization.

7020989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30366.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 7020989 is about 2649.7148903231. The cubic root of 7020989 is about 191.4841204193.

The spelling of 7020989 in words is "seven million, twenty thousand, nine hundred eighty-nine".