7006642 has 4 divisors (see below), whose sum is σ = 10509966. Its totient is φ = 3503320.

The previous prime is 7006639. The next prime is 7006667. The reversal of 7006642 is 2466007.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2466007 = 43 ⋅57349.

It can be written as a sum of positive squares in only one way, i.e., 4247721 + 2758921 = 2061^2 + 1661^2 .

It is an Ulam number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1751659 + ... + 1751662.

Almost surely, 2^7006642 is an apocalyptic number.

7006642 is a deficient number, since it is larger than the sum of its proper divisors (3503324).

7006642 is a wasteful number, since it uses less digits than its factorization.

7006642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3503323.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 7006642 is about 2647.0062334645. The cubic root of 7006642 is about 191.3536024315.

The spelling of 7006642 in words is "seven million, six thousand, six hundred forty-two".