60640064 has 14 divisors (see below), whose sum is σ = 120332754. Its totient is φ = 30320000.

The previous prime is 60640051. The next prime is 60640067. The reversal of 60640064 is 46004606.

It can be written as a sum of positive squares in only one way, i.e., 43665664 + 16974400 = 6608^2 + 4120^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60640067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473687 + ... + 473814.

Almost surely, 2^60640064 is an apocalyptic number.

60640064 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

60640064 is a deficient number, since it is larger than the sum of its proper divisors (59692690).

60640064 is an equidigital number, since it uses as much as digits as its factorization.

60640064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947513 (or 947503 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 60640064 is about 7787.1730428956. The cubic root of 60640064 is about 392.8739352255.

The spelling of 60640064 in words is "sixty million, six hundred forty thousand, sixty-four".