867421408 has 24 divisors (see below), whose sum is σ = 1951698672. Its totient is φ = 371751936.

The previous prime is 867421393. The next prime is 867421411. The reversal of 867421408 is 804124768.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1935985 + ... + 1936432.

It is an arithmetic number, because the mean of its divisors is an integer number (81320778).

Almost surely, 2^867421408 is an apocalyptic number.

It is an amenable number.

867421408 is an abundant number, since it is smaller than the sum of its proper divisors (1084277264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

867421408 is a wasteful number, since it uses less digits than its factorization.

867421408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3872434 (or 3872426 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 867421408 is about 29452.0187423545. The cubic root of 867421408 is about 953.6961851953.

The spelling of 867421408 in words is "eight hundred sixty-seven million, four hundred twenty-one thousand, four hundred eight".