867403128 has 32 divisors (see below), whose sum is σ = 2175454800. Its totient is φ = 288208128.

The previous prime is 867403127. The next prime is 867403133. The reversal of 867403128 is 821304768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867403127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50223 + ... + 65246.

Almost surely, 2^867403128 is an apocalyptic number.

It is an amenable number.

867403128 is an abundant number, since it is smaller than the sum of its proper divisors (1308051672).

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

867403128 is a wasteful number, since it uses less digits than its factorization.

867403128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115791 (or 115787 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 867403128 is about 29451.7084054559. The cubic root of 867403128 is about 953.6894857646.

The spelling of 867403128 in words is "eight hundred sixty-seven million, four hundred three thousand, one hundred twenty-eight".