7146989 has 4 divisors (see below), whose sum is σ = 7153020. Its totient is φ = 7140960.

The previous prime is 7146973. The next prime is 7147001. The reversal of 7146989 is 9896417.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9896417 = 23 ⋅430279.

It can be written as a sum of positive squares in 2 ways, for example, as 2778889 + 4368100 = 1667^2 + 2090^2 .

It is a cyclic number.

It is not a de Polignac number, because 7146989 - 2⁴ = 7146973 is a prime.

It is a super-2 number, since 2×7146989² = 102158903532242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7146929) 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, 584 + ... + 3825.

It is an arithmetic number, because the mean of its divisors is an integer number (1788255).

Almost surely, 2^7146989 is an apocalyptic number.

It is an amenable number.

7146989 is a deficient number, since it is larger than the sum of its proper divisors (6031).

7146989 is a wasteful number, since it uses less digits than its factorization.

7146989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6030.

The product of its digits is 108864, while the sum is 44.

The square root of 7146989 is about 2673.3853070592. The cubic root of 7146989 is about 192.6228057680.

The spelling of 7146989 in words is "seven million, one hundred forty-six thousand, nine hundred eighty-nine".