63876340 has 24 divisors (see below), whose sum is σ = 146335392. Its totient is φ = 23227680.

The previous prime is 63876287. The next prime is 63876341. The reversal of 63876340 is 4367836.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 63876340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63876341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144954 + ... + 145393.

It is an arithmetic number, because the mean of its divisors is an integer number (6097308).

Almost surely, 2^63876340 is an apocalyptic number.

It is an amenable number.

63876340 is an abundant number, since it is smaller than the sum of its proper divisors (82459052).

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

63876340 is a wasteful number, since it uses less digits than its factorization.

63876340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290367 (or 290365 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 63876340 is about 7992.2675130403. The cubic root of 63876340 is about 399.7422088951.

The spelling of 63876340 in words is "sixty-three million, eight hundred seventy-six thousand, three hundred forty".