67921922 has 16 divisors (see below), whose sum is σ = 108356640. Its totient is φ = 31840128.

The previous prime is 67921883. The next prime is 67921943. The reversal of 67921922 is 22912976.

It is a super-2 number, since 2×67921922² = 9226774976348168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5528 + ... + 12899.

It is an arithmetic number, because the mean of its divisors is an integer number (6772290).

Almost surely, 2^67921922 is an apocalyptic number.

67921922 is a deficient number, since it is larger than the sum of its proper divisors (40434718).

67921922 is a wasteful number, since it uses less digits than its factorization.

67921922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18545.

The product of its digits is 27216, while the sum is 38.

The square root of 67921922 is about 8241.4757173700. The cubic root of 67921922 is about 408.0092310163.

The spelling of 67921922 in words is "sixty-seven million, nine hundred twenty-one thousand, nine hundred twenty-two".