63739494 has 192 divisors, whose sum is σ = 189604800. Its totient is φ = 15676416.

The previous prime is 63739457. The next prime is 63739519. The reversal of 63739494 is 49493736.

63739494 is a `hidden beast` number, since 637 + 3 + 9 + 4 + 9 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 584712 + ... + 584820.

It is an arithmetic number, because the mean of its divisors is an integer number (987525).

Almost surely, 2^63739494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63739494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94802400).

63739494 is an abundant number, since it is smaller than the sum of its proper divisors (125865306).

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

63739494 is a wasteful number, since it uses less digits than its factorization.

63739494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 151 counting only the distinct ones).

The product of its digits is 489888, while the sum is 45.

The square root of 63739494 is about 7983.7017729873. The cubic root of 63739494 is about 399.4565411322.

The spelling of 63739494 in words is "sixty-three million, seven hundred thirty-nine thousand, four hundred ninety-four".