646002062 has 4 divisors (see below), whose sum is σ = 969003096. Its totient is φ = 323001030.

The previous prime is 646002061. The next prime is 646002067. The reversal of 646002062 is 260200646.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 260200646 = 2 ⋅130100323.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646002061) 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 as a sum of consecutive naturals, namely, 161500514 + ... + 161500517.

It is an arithmetic number, because the mean of its divisors is an integer number (242250774).

Almost surely, 2^646002062 is an apocalyptic number.

646002062 is a deficient number, since it is larger than the sum of its proper divisors (323001034).

646002062 is a wasteful number, since it uses less digits than its factorization.

646002062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323001033.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 646002062 is about 25416.5706183978. The cubic root of 646002062 is about 864.4594669434.

The spelling of 646002062 in words is "six hundred forty-six million, two thousand, sixty-two".