64974080 has 72 divisors (see below), whose sum is σ = 162473472. Its totient is φ = 24848384.

The previous prime is 64974073. The next prime is 64974083. The reversal of 64974080 is 8047946.

It is a happy number.

64974080 is nontrivially palindromic in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64974083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28337 + ... + 30543.

It is an arithmetic number, because the mean of its divisors is an integer number (2256576).

Almost surely, 2^64974080 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 64974080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81236736).

64974080 is an abundant number, since it is smaller than the sum of its proper divisors (97499392).

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

64974080 is a wasteful number, since it uses less digits than its factorization.

64974080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251 (or 2237 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 64974080 is about 8060.6500978519. The cubic root of 64974080 is about 402.0191240294.

The spelling of 64974080 in words is "sixty-four million, nine hundred seventy-four thousand, eighty".