8697642 has 32 divisors (see below), whose sum is σ = 18693504. Its totient is φ = 2688000.

The previous prime is 8697641. The next prime is 8697677. The reversal of 8697642 is 2467968.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8697594 and 8697603.

It is not an unprimeable number, because it can be changed into a prime (8697641) 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 15 ways as a sum of consecutive naturals, for example, 6642 + ... + 7842.

It is an arithmetic number, because the mean of its divisors is an integer number (584172).

Almost surely, 2^8697642 is an apocalyptic number.

8697642 is an abundant number, since it is smaller than the sum of its proper divisors (9995862).

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

8697642 is a wasteful number, since it uses less digits than its factorization.

8697642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294.

The product of its digits is 145152, while the sum is 42.

The square root of 8697642 is about 2949.1764952271. The cubic root of 8697642 is about 205.6524286295.

It can be divided in two parts, 8697 and 642, that added together give a palindrome (9339).

The spelling of 8697642 in words is "eight million, six hundred ninety-seven thousand, six hundred forty-two".