64499464 has 8 divisors (see below), whose sum is σ = 120936510. Its totient is φ = 32249728.

The previous prime is 64499447. The next prime is 64499467. The reversal of 64499464 is 46499446.

It can be written as a sum of positive squares in only one way, i.e., 41860900 + 22638564 = 6470^2 + 4758^2 .

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

It is not an unprimeable number, because it can be changed into a prime (64499467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4031209 + ... + 4031224.

Almost surely, 2^64499464 is an apocalyptic number.

It is an amenable number.

64499464 is a deficient number, since it is larger than the sum of its proper divisors (56437046).

64499464 is a wasteful number, since it uses less digits than its factorization.

64499464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8062439 (or 8062435 counting only the distinct ones).

The product of its digits is 746496, while the sum is 46.

The square root of 64499464 is about 8031.1558321328. The cubic root of 64499464 is about 401.0378548145.

The spelling of 64499464 in words is "sixty-four million, four hundred ninety-nine thousand, four hundred sixty-four".