64545704 has 8 divisors (see below), whose sum is σ = 121023210. Its totient is φ = 32272848.

The previous prime is 64545703. The next prime is 64545707. The reversal of 64545704 is 40754546.

It can be written as a sum of positive squares in only one way, i.e., 46922500 + 17623204 = 6850^2 + 4198^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×64545704² = 8332295809711232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64545703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4034099 + ... + 4034114.

Almost surely, 2^64545704 is an apocalyptic number.

It is an amenable number.

64545704 is a deficient number, since it is larger than the sum of its proper divisors (56477506).

64545704 is a wasteful number, since it uses less digits than its factorization.

64545704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8068219 (or 8068215 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 35.

The square root of 64545704 is about 8034.0341049811. The cubic root of 64545704 is about 401.1336672941.

The spelling of 64545704 in words is "sixty-four million, five hundred forty-five thousand, seven hundred four".