67700736 has 72 divisors (see below), whose sum is σ = 195585390. Its totient is φ = 22560768.

The previous prime is 67700729. The next prime is 67700747. The reversal of 67700736 is 63700776.

It can be written as a sum of positive squares in only one way, i.e., 66585600 + 1115136 = 8160^2 + 1056^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 67700736.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16596 + ... + 20268.

Almost surely, 2^67700736 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 67700736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97792695).

67700736 is an abundant number, since it is smaller than the sum of its proper divisors (127884654).

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

67700736 is a wasteful number, since it uses less digits than its factorization.

67700736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3701 (or 3678 counting only the distinct ones).

The product of its (nonzero) digits is 37044, while the sum is 36.

The square root of 67700736 is about 8228.0456974910. The cubic root of 67700736 is about 407.5658588526.

The spelling of 67700736 in words is "sixty-seven million, seven hundred thousand, seven hundred thirty-six".