867870100 has 18 divisors (see below), whose sum is σ = 1883278334. Its totient is φ = 347148000.

The previous prime is 867870097. The next prime is 867870103. The reversal of 867870100 is 1078768.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (867870097) and next prime (867870103).

It can be written as a sum of positive squares in 3 ways, for example, as 198302724 + 669567376 = 14082^2 + 25876^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 867870100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867870103) 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, 4339251 + ... + 4339450.

Almost surely, 2^867870100 is an apocalyptic number.

It is an amenable number.

867870100 is an abundant number, since it is smaller than the sum of its proper divisors (1015408234).

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

867870100 is a wasteful number, since it uses less digits than its factorization.

867870100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8678715 (or 8678708 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 37.

The square root of 867870100 is about 29459.6350961786. The cubic root of 867870100 is about 953.8605966656.

The spelling of 867870100 in words is "eight hundred sixty-seven million, eight hundred seventy thousand, one hundred".