867955401 has 24 divisors (see below), whose sum is σ = 1282174920. Its totient is φ = 565583616.

The previous prime is 867955331. The next prime is 867955411. The reversal of 867955401 is 104559768.

It can be written as a sum of positive squares in 4 ways, for example, as 244953801 + 623001600 = 15651^2 + 24960^2 .

It is not a de Polignac number, because 867955401 - 2¹⁰ = 867954377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (867955411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128845 + ... + 135413.

It is an arithmetic number, because the mean of its divisors is an integer number (53423955).

Almost surely, 2^867955401 is an apocalyptic number.

It is an amenable number.

867955401 is a deficient number, since it is larger than the sum of its proper divisors (414219519).

867955401 is a wasteful number, since it uses less digits than its factorization.

867955401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6905 (or 6902 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 867955401 is about 29461.0828212406. The cubic root of 867955401 is about 953.8918465793.

The spelling of 867955401 in words is "eight hundred sixty-seven million, nine hundred fifty-five thousand, four hundred one".