67921122 has 32 divisors (see below), whose sum is σ = 140444352. Its totient is φ = 21881664.

The previous prime is 67921109. The next prime is 67921127. The reversal of 67921122 is 22112976.

It is a super-2 number, since 2×67921122² = 9226557627477768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 67921122.

It is not an unprimeable number, because it can be changed into a prime (67921127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35248 + ... + 37124.

It is an arithmetic number, because the mean of its divisors is an integer number (4388886).

Almost surely, 2^67921122 is an apocalyptic number.

67921122 is an abundant number, since it is smaller than the sum of its proper divisors (72523230).

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

67921122 is a wasteful number, since it uses less digits than its factorization.

67921122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2082.

The product of its digits is 3024, while the sum is 30.

The square root of 67921122 is about 8241.4271822300. The cubic root of 67921122 is about 408.0076291345.

The spelling of 67921122 in words is "sixty-seven million, nine hundred twenty-one thousand, one hundred twenty-two".