8687412 has 30 divisors (see below), whose sum is σ = 22711458. Its totient is φ = 2895696.

The previous prime is 8687401. The next prime is 8687423. The reversal of 8687412 is 2147868.

It is an interprime number because it is at equal distance from previous prime (8687401) and next prime (8687423).

It can be written as a sum of positive squares in only one way, i.e., 8088336 + 599076 = 2844^2 + 774^2 .

It is a super-2 number, since 2×8687412² = 150942254515488, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 13083 + ... + 13730.

Almost surely, 2^8687412 is an apocalyptic number.

It is an amenable number.

8687412 is an abundant number, since it is smaller than the sum of its proper divisors (14024046).

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

8687412 is a wasteful number, since it uses less digits than its factorization.

8687412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26829 (or 26818 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 8687412 is about 2947.4416024749. The cubic root of 8687412 is about 205.5717688480.

The spelling of 8687412 in words is "eight million, six hundred eighty-seven thousand, four hundred twelve".