6405962 has 8 divisors (see below), whose sum is σ = 9619716. Its totient is φ = 3199392.

The previous prime is 6405943. The next prime is 6405979. The reversal of 6405962 is 2695046.

It is a Cunningham number, because it is equal to 2531²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 6405961 + 1 = 2531^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×6405962³ (a number of 21 digits) contains 333 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 2348 + ... + 4280.

Almost surely, 2^6405962 is an apocalyptic number.

6405962 is a deficient number, since it is larger than the sum of its proper divisors (3213754).

6405962 is a wasteful number, since it uses less digits than its factorization.

6405962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3592.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 6405962 is about 2531.0001975504. Note that the first 3 decimals coincide. The cubic root of 6405962 is about 185.7211878528.

The spelling of 6405962 in words is "six million, four hundred five thousand, nine hundred sixty-two".