122077887 has 4 divisors (see below), whose sum is σ = 162770520. Its totient is φ = 81385256.

The previous prime is 122077883. The next prime is 122077889. The reversal of 122077887 is 788770221.

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 122077887 - 2² = 122077883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122077883) 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, 20346312 + ... + 20346317.

It is an arithmetic number, because the mean of its divisors is an integer number (40692630).

Almost surely, 2^122077887 is an apocalyptic number.

122077887 is a deficient number, since it is larger than the sum of its proper divisors (40692633).

122077887 is an equidigital number, since it uses as much as digits as its factorization.

122077887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40692632.

The product of its (nonzero) digits is 87808, while the sum is 42.

The square root of 122077887 is about 11048.8862334626. The cubic root of 122077887 is about 496.0730888110.

The spelling of 122077887 in words is "one hundred twenty-two million, seventy-seven thousand, eight hundred eighty-seven".