63397376 has 120 divisors (see below), whose sum is σ = 155905200. Its totient is φ = 25740288.

The previous prime is 63397363. The next prime is 63397409. The reversal of 63397376 is 67379336.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

Its product of digits (428652) is a multiple of the sum of its prime divisors (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3336695 + ... + 3336713.

It is an arithmetic number, because the mean of its divisors is an integer number (1299210).

Almost surely, 2^63397376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63397376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77952600).

63397376 is an abundant number, since it is smaller than the sum of its proper divisors (92507824).

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

63397376 is an frugal number, since it uses more digits than its factorization.

63397376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77 (or 28 counting only the distinct ones).

The product of its digits is 428652, while the sum is 44.

The square root of 63397376 is about 7962.2469190549. The cubic root of 63397376 is about 398.7405720985.

The spelling of 63397376 in words is "sixty-three million, three hundred ninety-seven thousand, three hundred seventy-six".