8642061 has 6 divisors (see below), whose sum is σ = 12482990. Its totient is φ = 5761368.

The previous prime is 8642059. The next prime is 8642063. The reversal of 8642061 is 1602468.

8642061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (8642059) and next prime (8642063).

It can be written as a sum of positive squares in only one way, i.e., 8555625 + 86436 = 2925^2 + 294^2 .

It is not a de Polignac number, because 8642061 - 2¹ = 8642059 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

8642061 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8642063) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 480106 + ... + 480123.

Almost surely, 2^8642061 is an apocalyptic number.

It is an amenable number.

8642061 is a deficient number, since it is larger than the sum of its proper divisors (3840929).

8642061 is a wasteful number, since it uses less digits than its factorization.

8642061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960235 (or 960232 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 8642061 is about 2939.7382536546. The cubic root of 8642061 is about 205.2134283245.

The spelling of 8642061 in words is "eight million, six hundred forty-two thousand, sixty-one".