421766105 has 16 divisors (see below), whose sum is σ = 515322000. Its totient is φ = 331330560.

The previous prime is 421766101. The next prime is 421766153. The reversal of 421766105 is 501667124.

It can be written as a sum of positive squares in 8 ways, for example, as 129595456 + 292170649 = 11384^2 + 17093^2 .

It is not a de Polignac number, because 421766105 - 2² = 421766101 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421766101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63125 + ... + 69485.

It is an arithmetic number, because the mean of its divisors is an integer number (32207625).

Almost surely, 2^421766105 is an apocalyptic number.

It is an amenable number.

421766105 is a deficient number, since it is larger than the sum of its proper divisors (93555895).

421766105 is a wasteful number, since it uses less digits than its factorization.

421766105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6604.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 421766105 is about 20536.9448798988. The cubic root of 421766105 is about 749.9354640766.

The spelling of 421766105 in words is "four hundred twenty-one million, seven hundred sixty-six thousand, one hundred five".