122789677 has 4 divisors (see below), whose sum is σ = 122812480. Its totient is φ = 122766876.

The previous prime is 122789603. The next prime is 122789687. The reversal of 122789677 is 776987221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122789677 - 2⁷ = 122789549 is a prime.

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 122789677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122789687) 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, 1678 + ... + 15760.

It is an arithmetic number, because the mean of its divisors is an integer number (30703120).

Almost surely, 2^122789677 is an apocalyptic number.

It is an amenable number.

122789677 is a deficient number, since it is larger than the sum of its proper divisors (22803).

122789677 is an equidigital number, since it uses as much as digits as its factorization.

122789677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22802.

The product of its digits is 592704, while the sum is 49.

The square root of 122789677 is about 11081.0503563516. The cubic root of 122789677 is about 497.0353592188.

The spelling of 122789677 in words is "one hundred twenty-two million, seven hundred eighty-nine thousand, six hundred seventy-seven".