8434401922 has 4 divisors (see below), whose sum is σ = 12651602886. Its totient is φ = 4217200960.

The previous prime is 8434401919. The next prime is 8434402003. The reversal of 8434401922 is 2291044348.

It is a Cunningham number, because it is equal to 91839²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8434401921 + 1 = 91839^2 + 1^2 .

It is a super-2 number, since 2×8434401922² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2108600479 + ... + 2108600482.

Almost surely, 2^8434401922 is an apocalyptic number.

8434401922 is a deficient number, since it is larger than the sum of its proper divisors (4217200964).

8434401922 is a wasteful number, since it uses less digits than its factorization.

8434401922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4217200963.

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 8434401922 is about 91839.0000054443. Note that the first 5 decimals coincide. The cubic root of 8434401922 is about 2035.5640122396.

The spelling of 8434401922 in words is "eight billion, four hundred thirty-four million, four hundred one thousand, nine hundred twenty-two".