64381704 has 32 divisors (see below), whose sum is σ = 161636640. Its totient is φ = 21369600.

The previous prime is 64381687. The next prime is 64381717. The reversal of 64381704 is 40718346.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219 + ... + 11349.

It is an arithmetic number, because the mean of its divisors is an integer number (5051145).

Almost surely, 2^64381704 is an apocalyptic number.

It is an amenable number.

64381704 is an abundant number, since it is smaller than the sum of its proper divisors (97254936).

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

64381704 is a wasteful number, since it uses less digits than its factorization.

64381704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11381 (or 11377 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 64381704 is about 8023.8210348935. The cubic root of 64381704 is about 400.7936409603.

The spelling of 64381704 in words is "sixty-four million, three hundred eighty-one thousand, seven hundred four".