421213167 has 6 divisors (see below), whose sum is σ = 608419032. Its totient is φ = 280808772.

The previous prime is 421213159. The next prime is 421213171. The reversal of 421213167 is 761312124.

It is not a de Polignac number, because 421213167 - 2³ = 421213159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 421213167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421213187) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23400723 + ... + 23400740.

It is an arithmetic number, because the mean of its divisors is an integer number (101403172).

Almost surely, 2^421213167 is an apocalyptic number.

421213167 is a deficient number, since it is larger than the sum of its proper divisors (187205865).

421213167 is a wasteful number, since it uses less digits than its factorization.

421213167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46801469 (or 46801466 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 421213167 is about 20523.4784332481. The cubic root of 421213167 is about 749.6075973961.

The spelling of 421213167 in words is "four hundred twenty-one million, two hundred thirteen thousand, one hundred sixty-seven".