64975332 has 24 divisors (see below), whose sum is σ = 151867072. Its totient is φ = 21621600.

The previous prime is 64975331. The next prime is 64975363. The reversal of 64975332 is 23357946.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (64975331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3282 + ... + 11862.

Almost surely, 2^64975332 is an apocalyptic number.

It is an amenable number.

64975332 is an abundant number, since it is smaller than the sum of its proper divisors (86891740).

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

64975332 is a wasteful number, since it uses less digits than its factorization.

64975332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9219 (or 9217 counting only the distinct ones).

The product of its digits is 136080, while the sum is 39.

The square root of 64975332 is about 8060.7277587076. The cubic root of 64975332 is about 402.0217062114.

The spelling of 64975332 in words is "sixty-four million, nine hundred seventy-five thousand, three hundred thirty-two".