64623324 has 96 divisors (see below), whose sum is σ = 167650560. Its totient is φ = 19289088.

The previous prime is 64623301. The next prime is 64623331. The reversal of 64623324 is 42332646.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 64623291 and 64623300.

It is a congruent number.

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, 464847 + ... + 464985.

It is an arithmetic number, because the mean of its divisors is an integer number (1746360).

Almost surely, 2^64623324 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 64623324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83825280).

64623324 is an abundant number, since it is smaller than the sum of its proper divisors (103027236).

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

64623324 is a wasteful number, since it uses less digits than its factorization.

64623324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259 (or 257 counting only the distinct ones).

The product of its digits is 20736, while the sum is 30.

The square root of 64623324 is about 8038.8633524896. The cubic root of 64623324 is about 401.2943984799.

The spelling of 64623324 in words is "sixty-four million, six hundred twenty-three thousand, three hundred twenty-four".