421007167 has 12 divisors (see below), whose sum is σ = 492685200. Its totient is φ = 358695456.

The previous prime is 421007161. The next prime is 421007173. The reversal of 421007167 is 761700124.

It is an interprime number because it is at equal distance from previous prime (421007161) and next prime (421007173).

It is not a de Polignac number, because 421007167 - 2⁷ = 421007039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421007161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17542 + ... + 33907.

It is an arithmetic number, because the mean of its divisors is an integer number (41057100).

Almost surely, 2^421007167 is an apocalyptic number.

421007167 is a deficient number, since it is larger than the sum of its proper divisors (71678033).

421007167 is a wasteful number, since it uses less digits than its factorization.

421007167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51630 (or 51623 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 421007167 is about 20518.4591770435. The cubic root of 421007167 is about 749.4853755556.

The spelling of 421007167 in words is "four hundred twenty-one million, seven thousand, one hundred sixty-seven".