8461869 has 16 divisors (see below), whose sum is σ = 12866112. Its totient is φ = 4900608.

The previous prime is 8461813. The next prime is 8461877. The reversal of 8461869 is 9681648.

It is not a de Polignac number, because 8461869 - 2⁸ = 8461613 is a prime.

It is a super-2 number, since 2×8461869² = 143206453946322, which contains 22 as substring.

8461869 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8461869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8461169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5719 + ... + 7044.

It is an arithmetic number, because the mean of its divisors is an integer number (804132).

Almost surely, 2^8461869 is an apocalyptic number.

It is an amenable number.

8461869 is a deficient number, since it is larger than the sum of its proper divisors (4404243).

8461869 is a wasteful number, since it uses less digits than its factorization.

8461869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12796.

The product of its digits is 82944, while the sum is 42.

The square root of 8461869 is about 2908.9291844251. The cubic root of 8461869 is about 203.7771258752. Note that the first 3 decimals are identical.

The spelling of 8461869 in words is "eight million, four hundred sixty-one thousand, eight hundred sixty-nine".