64694112 has 144 divisors (see below), whose sum is σ = 209427120. Its totient is φ = 17375232.

The previous prime is 64694089. The next prime is 64694131. The reversal of 64694112 is 21149646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79564 + ... + 80372.

It is an arithmetic number, because the mean of its divisors is an integer number (1454355).

Almost surely, 2^64694112 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 64694112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104713560).

64694112 is an abundant number, since it is smaller than the sum of its proper divisors (144733008).

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

64694112 is a wasteful number, since it uses less digits than its factorization.

64694112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853 (or 838 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 64694112 is about 8043.2650086889. The cubic root of 64694112 is about 401.4408701675.

It can be divided in two parts, 646941 and 12, that added together give a triangular number (646953 = T₁₁₃₇).

The spelling of 64694112 in words is "sixty-four million, six hundred ninety-four thousand, one hundred twelve".