6463642 has 4 divisors (see below), whose sum is σ = 9695466. Its totient is φ = 3231820.

The previous prime is 6463637. The next prime is 6463643. The reversal of 6463642 is 2463646.

6463642 is nontrivially palindromic in base 3.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3964081 + 2499561 = 1991^2 + 1581^2 .

It is not an unprimeable number, because it can be changed into a prime (6463643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1615909 + ... + 1615912.

Almost surely, 2^6463642 is an apocalyptic number.

6463642 is a deficient number, since it is larger than the sum of its proper divisors (3231824).

6463642 is a wasteful number, since it uses less digits than its factorization.

6463642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3231823.

The product of its digits is 20736, while the sum is 31.

The square root of 6463642 is about 2542.3693673422. The cubic root of 6463642 is about 186.2769412854.

The spelling of 6463642 in words is "six million, four hundred sixty-three thousand, six hundred forty-two".