67213692 has 144 divisors (see below), whose sum is σ = 218524320. Its totient is φ = 17708544.

The previous prime is 67213681. The next prime is 67213711. The reversal of 67213692 is 29631276.

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

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68308 + ... + 69284.

It is an arithmetic number, because the mean of its divisors is an integer number (1517530).

Almost surely, 2^67213692 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 67213692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109262160).

67213692 is an abundant number, since it is smaller than the sum of its proper divisors (151310628).

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

67213692 is a wasteful number, since it uses less digits than its factorization.

67213692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017 (or 1002 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 67213692 is about 8198.3956967202. The cubic root of 67213692 is about 406.5861529519.

The spelling of 67213692 in words is "sixty-seven million, two hundred thirteen thousand, six hundred ninety-two".