67901923 has 4 divisors (see below), whose sum is σ = 68041840. Its totient is φ = 67762008.

The previous prime is 67901909. The next prime is 67901929. The reversal of 67901923 is 32910976.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 67901923 - 2⁵ = 67901891 is a prime.

It is a super-2 number, since 2×67901923² = 9221342294195858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67901929) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 69228 + ... + 70201.

It is an arithmetic number, because the mean of its divisors is an integer number (17010460).

Almost surely, 2^67901923 is an apocalyptic number.

67901923 is a deficient number, since it is larger than the sum of its proper divisors (139917).

67901923 is a wasteful number, since it uses less digits than its factorization.

67901923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139916.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 67901923 is about 8240.2623137859. The cubic root of 67901923 is about 407.9691822007.

The spelling of 67901923 in words is "sixty-seven million, nine hundred one thousand, nine hundred twenty-three".