421292107 has 4 divisors (see below), whose sum is σ = 422647056. Its totient is φ = 419937160.

The previous prime is 421292099. The next prime is 421292117. The reversal of 421292107 is 701292124.

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 421292107 - 2³ = 421292099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421292117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 677008 + ... + 677629.

It is an arithmetic number, because the mean of its divisors is an integer number (105661764).

Almost surely, 2^421292107 is an apocalyptic number.

421292107 is a deficient number, since it is larger than the sum of its proper divisors (1354949).

421292107 is a wasteful number, since it uses less digits than its factorization.

421292107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354948.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 421292107 is about 20525.4015064261. The cubic root of 421292107 is about 749.6544227188.

The spelling of 421292107 in words is "four hundred twenty-one million, two hundred ninety-two thousand, one hundred seven".