8619642 has 16 divisors (see below), whose sum is σ = 19154880. Its totient is φ = 2873196.

The previous prime is 8619623. The next prime is 8619649. The reversal of 8619642 is 2469168.

8619642 is a `hidden beast` number, since 8 + 6 + 1 + 9 + 642 = 666.

It is a d-powerful number, because it can be written as 8⁷ + 6⁷ + 1 + 9⁷ + 6⁷ + 4¹⁰ + 2¹⁷ .

It is a junction number, because it is equal to n+sod(n) for n = 8619597 and 8619606.

It is not an unprimeable number, because it can be changed into a prime (8619649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79758 + ... + 79865.

It is an arithmetic number, because the mean of its divisors is an integer number (1197180).

Almost surely, 2^8619642 is an apocalyptic number.

8619642 is an abundant number, since it is smaller than the sum of its proper divisors (10535238).

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

8619642 is a wasteful number, since it uses less digits than its factorization.

8619642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159634 (or 159628 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 8619642 is about 2935.9226829057. The cubic root of 8619642 is about 205.0358216204.

It can be divided in two parts, 8619 and 642, that added together give a cube (9261 = 21³).

The spelling of 8619642 in words is "eight million, six hundred nineteen thousand, six hundred forty-two".