122877667 has 4 divisors (see below), whose sum is σ = 134048376. Its totient is φ = 111706960.

The previous prime is 122877659. The next prime is 122877701. The reversal of 122877667 is 766778221.

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 122877667 - 2³ = 122877659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122877637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5585338 + ... + 5585359.

It is an arithmetic number, because the mean of its divisors is an integer number (33512094).

Almost surely, 2^122877667 is an apocalyptic number.

122877667 is a deficient number, since it is larger than the sum of its proper divisors (11170709).

122877667 is a wasteful number, since it uses less digits than its factorization.

122877667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11170708.

The product of its digits is 395136, while the sum is 46.

The square root of 122877667 is about 11085.0199368337. The cubic root of 122877667 is about 497.1540545901.

The spelling of 122877667 in words is "one hundred twenty-two million, eight hundred seventy-seven thousand, six hundred sixty-seven".