6405002 has 4 divisors (see below), whose sum is σ = 9607506. Its totient is φ = 3202500.

The previous prime is 6404987. The next prime is 6405011. The reversal of 6405002 is 2005046.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2005046 = 2 ⋅1002523.

It can be written as a sum of positive squares in only one way, i.e., 5148361 + 1256641 = 2269^2 + 1121^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1601249 + ... + 1601252.

Almost surely, 2^6405002 is an apocalyptic number.

6405002 is a deficient number, since it is larger than the sum of its proper divisors (3202504).

6405002 is a wasteful number, since it uses less digits than its factorization.

6405002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3202503.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 6405002 is about 2530.8105420991. The cubic root of 6405002 is about 185.7119099724.

The spelling of 6405002 in words is "six million, four hundred five thousand, two".