6463942 has 4 divisors (see below), whose sum is σ = 9695916. Its totient is φ = 3231970.

The previous prime is 6463909. The next prime is 6463949. The reversal of 6463942 is 2493646.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2493646 = 2 ⋅1246823.

It is a d-powerful number, because it can be written as 6² + 4⁴ + 6⁸ + 3¹⁴ + 9 + 4⁵ + 2⁵ .

It is a junction number, because it is equal to n+sod(n) for n = 6463898 and 6463907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6463949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1615984 + ... + 1615987.

It is an arithmetic number, because the mean of its divisors is an integer number (2423979).

Almost surely, 2^6463942 is an apocalyptic number.

6463942 is a deficient number, since it is larger than the sum of its proper divisors (3231974).

6463942 is a wasteful number, since it uses less digits than its factorization.

6463942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3231973.

The product of its digits is 31104, while the sum is 34.

The square root of 6463942 is about 2542.4283667392. The cubic root of 6463942 is about 186.2798231600.

The spelling of 6463942 in words is "six million, four hundred sixty-three thousand, nine hundred forty-two".