63431346 has 48 divisors (see below), whose sum is σ = 142912224. Its totient is φ = 18744000.

The previous prime is 63431327. The next prime is 63431353. The reversal of 63431346 is 64313436.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28701 + ... + 30831.

It is an arithmetic number, because the mean of its divisors is an integer number (2977338).

Almost surely, 2^63431346 is an apocalyptic number.

63431346 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 63431346, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71456112).

63431346 is an abundant number, since it is smaller than the sum of its proper divisors (79480878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63431346 is a wasteful number, since it uses less digits than its factorization.

63431346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2199 (or 2188 counting only the distinct ones).

The product of its digits is 15552, while the sum is 30.

The square root of 63431346 is about 7964.3798251967. The cubic root of 63431346 is about 398.8117779828.

The spelling of 63431346 in words is "sixty-three million, four hundred thirty-one thousand, three hundred forty-six".