67887901 has 4 divisors (see below), whose sum is σ = 68080572. Its totient is φ = 67695232.

The previous prime is 67887889. The next prime is 67887907. The reversal of 67887901 is 10978876.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20484676 + 47403225 = 4526^2 + 6885^2 .

It is a cyclic number.

It is not a de Polignac number, because 67887901 - 2⁹ = 67887389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67887907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95806 + ... + 96511.

It is an arithmetic number, because the mean of its divisors is an integer number (17020143).

Almost surely, 2^67887901 is an apocalyptic number.

It is an amenable number.

67887901 is a deficient number, since it is larger than the sum of its proper divisors (192671).

67887901 is a wasteful number, since it uses less digits than its factorization.

67887901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192670.

The product of its (nonzero) digits is 169344, while the sum is 46.

The square root of 67887901 is about 8239.4114474275. The cubic root of 67887901 is about 407.9410978822.

The spelling of 67887901 in words is "sixty-seven million, eight hundred eighty-seven thousand, nine hundred one".