7021061 has 4 divisors (see below), whose sum is σ = 7039500. Its totient is φ = 7002624.

The previous prime is 7021057. The next prime is 7021073. The reversal of 7021061 is 1601207.

It is a happy number.

7021061 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 3976036 + 3045025 = 1994^2 + 1745^2 .

It is a cyclic number.

It is not a de Polignac number, because 7021061 - 2² = 7021057 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 (7021081) 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, 8636 + ... + 9413.

It is an arithmetic number, because the mean of its divisors is an integer number (1759875).

Almost surely, 2^7021061 is an apocalyptic number.

It is an amenable number.

7021061 is a deficient number, since it is larger than the sum of its proper divisors (18439).

7021061 is a wasteful number, since it uses less digits than its factorization.

7021061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18438.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 7021061 is about 2649.7284766557. The cubic root of 7021061 is about 191.4847749714.

Adding to 7021061 its reverse (1601207), we get a palindrome (8622268).

The spelling of 7021061 in words is "seven million, twenty-one thousand, sixty-one".