67104431 has 4 divisors (see below), whose sum is σ = 67140000. Its totient is φ = 67068864.

The previous prime is 67104419. The next prime is 67104437. The reversal of 67104431 is 13440176.

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 67104431 - 2¹⁸ = 66842287 is a prime.

It is a super-2 number, since 2×67104431² = 9006009319667522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67104431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67104437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14786 + ... + 18783.

It is an arithmetic number, because the mean of its divisors is an integer number (16785000).

Almost surely, 2^67104431 is an apocalyptic number.

67104431 is a deficient number, since it is larger than the sum of its proper divisors (35569).

67104431 is a wasteful number, since it uses less digits than its factorization.

67104431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35568.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 67104431 is about 8191.7294266840. The cubic root of 67104431 is about 406.3657211636.

The spelling of 67104431 in words is "sixty-seven million, one hundred four thousand, four hundred thirty-one".