67213536 has 48 divisors (see below), whose sum is σ = 190011024. Its totient is φ = 20680704.

The previous prime is 67213519. The next prime is 67213541. The reversal of 67213536 is 63531276.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 67213497 and 67213506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25681 + ... + 28176.

It is an arithmetic number, because the mean of its divisors is an integer number (3958563).

Almost surely, 2^67213536 is an apocalyptic number.

It is an amenable number.

67213536 is an abundant number, since it is smaller than the sum of its proper divisors (122797488).

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

67213536 is a wasteful number, since it uses less digits than its factorization.

67213536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53883 (or 53875 counting only the distinct ones).

The product of its digits is 22680, while the sum is 33.

The square root of 67213536 is about 8198.3861826581. The cubic root of 67213536 is about 406.5858383955.

The spelling of 67213536 in words is "sixty-seven million, two hundred thirteen thousand, five hundred thirty-six".