64645352 has 16 divisors (see below), whose sum is σ = 123020160. Its totient is φ = 31839984.

The previous prime is 64645307. The next prime is 64645457. The reversal of 64645352 is 25354646.

It is a happy number.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59768 + ... + 60839.

It is an arithmetic number, because the mean of its divisors is an integer number (7688760).

Almost surely, 2^64645352 is an apocalyptic number.

It is an amenable number.

64645352 is a deficient number, since it is larger than the sum of its proper divisors (58374808).

64645352 is a wasteful number, since it uses less digits than its factorization.

64645352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120680 (or 120676 counting only the distinct ones).

The product of its digits is 86400, while the sum is 35.

The square root of 64645352 is about 8040.2333299476. The cubic root of 64645352 is about 401.3399893918.

Adding to 64645352 its reverse (25354646), we get a palindrome (89999998).

The spelling of 64645352 in words is "sixty-four million, six hundred forty-five thousand, three hundred fifty-two".