108421077 has 4 divisors (see below), whose sum is σ = 144561440. Its totient is φ = 72280716.

The previous prime is 108421073. The next prime is 108421081. The reversal of 108421077 is 770124801.

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 an interprime number because it is at equal distance from previous prime (108421073) and next prime (108421081).

It is not a de Polignac number, because 108421077 - 2² = 108421073 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 (108421073) 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, 18070177 + ... + 18070182.

It is an arithmetic number, because the mean of its divisors is an integer number (36140360).

Almost surely, 2^108421077 is an apocalyptic number.

It is an amenable number.

108421077 is a deficient number, since it is larger than the sum of its proper divisors (36140363).

108421077 is an equidigital number, since it uses as much as digits as its factorization.

108421077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36140362.

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 108421077 is about 10412.5442135916. The cubic root of 108421077 is about 476.8384186087.

Adding to 108421077 its reverse (770124801), we get a palindrome (878545878).

The spelling of 108421077 in words is "one hundred eight million, four hundred twenty-one thousand, seventy-seven".