866887484 has 12 divisors (see below), whose sum is σ = 1517481000. Its totient is φ = 433321488.

The previous prime is 866887453. The next prime is 866887487. The reversal of 866887484 is 484788668.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866887487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13559 + ... + 43790.

It is an arithmetic number, because the mean of its divisors is an integer number (126456750).

Almost surely, 2^866887484 is an apocalyptic number.

It is an amenable number.

866887484 is a deficient number, since it is larger than the sum of its proper divisors (650593516).

866887484 is a wasteful number, since it uses less digits than its factorization.

866887484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61132 (or 61130 counting only the distinct ones).

The product of its digits is 16515072, while the sum is 59.

The square root of 866887484 is about 29442.9530448289. The cubic root of 866887484 is about 953.5004687921.

The spelling of 866887484 in words is "eight hundred sixty-six million, eight hundred eighty-seven thousand, four hundred eighty-four".