67426945 has 8 divisors (see below), whose sum is σ = 81270144. Its totient is φ = 53703024.

The previous prime is 67426907. The next prime is 67426951. The reversal of 67426945 is 54962476.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 67426945 - 2⁷ = 67426817 is a prime.

It is a Duffinian 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, 28569 + ... + 30838.

It is an arithmetic number, because the mean of its divisors is an integer number (10158768).

Almost surely, 2^67426945 is an apocalyptic number.

It is an amenable number.

67426945 is a deficient number, since it is larger than the sum of its proper divisors (13843199).

67426945 is a wasteful number, since it uses less digits than its factorization.

67426945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59639.

The product of its digits is 362880, while the sum is 43.

The square root of 67426945 is about 8211.3911732422. The cubic root of 67426945 is about 407.0156992578.

The spelling of 67426945 in words is "sixty-seven million, four hundred twenty-six thousand, nine hundred forty-five".