67077121 has 8 divisors (see below), whose sum is σ = 71386920. Its totient is φ = 62807808.

The previous prime is 67077103. The next prime is 67077133. The reversal of 67077121 is 12177076.

67077121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 30305025 + 36772096 = 5505^2 + 6064^2 .

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 67077121 - 2²¹ = 64979969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67077161) 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 7 ways as a sum of consecutive naturals, for example, 6666 + ... + 13363.

It is an arithmetic number, because the mean of its divisors is an integer number (8923365).

Almost surely, 2^67077121 is an apocalyptic number.

It is an amenable number.

67077121 is a deficient number, since it is larger than the sum of its proper divisors (4309799).

67077121 is a wasteful number, since it uses less digits than its factorization.

67077121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20243.

The product of its (nonzero) digits is 4116, while the sum is 31.

The square root of 67077121 is about 8190.0623318751. The cubic root of 67077121 is about 406.3105864353.

The spelling of 67077121 in words is "sixty-seven million, seventy-seven thousand, one hundred twenty-one".