861364983 has 16 divisors (see below), whose sum is σ = 1159232256. Its totient is φ = 568896000.

The previous prime is 861364963. The next prime is 861364991. The reversal of 861364983 is 389463168.

It is not a de Polignac number, because 861364983 - 2⁸ = 861364727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861364913) 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 15 ways as a sum of consecutive naturals, for example, 142366 + ... + 148292.

It is an arithmetic number, because the mean of its divisors is an integer number (72452016).

Almost surely, 2^861364983 is an apocalyptic number.

861364983 is a deficient number, since it is larger than the sum of its proper divisors (297867273).

861364983 is a wasteful number, since it uses less digits than its factorization.

861364983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6374.

The product of its digits is 746496, while the sum is 48.

The square root of 861364983 is about 29349.0201369654. The cubic root of 861364983 is about 951.4713977956.

It can be divided in two parts, 86136 and 4983, that added together give a palindrome (91119).

The spelling of 861364983 in words is "eight hundred sixty-one million, three hundred sixty-four thousand, nine hundred eighty-three".