64955628 has 96 divisors (see below), whose sum is σ = 175633920. Its totient is φ = 20744640.

The previous prime is 64955599. The next prime is 64955689. The reversal of 64955628 is 82655946.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

Its product of digits (518400) is a multiple of the sum of its prime factors (324).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 329626 + ... + 329822.

It is an arithmetic number, because the mean of its divisors is an integer number (1829520).

Almost surely, 2^64955628 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64955628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87816960).

64955628 is an abundant number, since it is smaller than the sum of its proper divisors (110678292).

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

64955628 is a wasteful number, since it uses less digits than its factorization.

64955628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324 (or 316 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 64955628 is about 8059.5054438843. The cubic root of 64955628 is about 401.9810639332.

The spelling of 64955628 in words is "sixty-four million, nine hundred fifty-five thousand, six hundred twenty-eight".