420851267 has 4 divisors (see below), whose sum is σ = 421248240. Its totient is φ = 420454296.

The previous prime is 420851231. The next prime is 420851339. The reversal of 420851267 is 762158024.

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 420851267 - 2¹² = 420847171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420851867) 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, 196892 + ... + 199017.

It is an arithmetic number, because the mean of its divisors is an integer number (105312060).

Almost surely, 2^420851267 is an apocalyptic number.

420851267 is a deficient number, since it is larger than the sum of its proper divisors (396973).

420851267 is a wasteful number, since it uses less digits than its factorization.

420851267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396972.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 420851267 is about 20514.6598070745. The cubic root of 420851267 is about 749.3928520352.

The spelling of 420851267 in words is "four hundred twenty million, eight hundred fifty-one thousand, two hundred sixty-seven".