8738861 has 4 divisors (see below), whose sum is σ = 8787324. Its totient is φ = 8690400.

The previous prime is 8738843. The next prime is 8738881. The reversal of 8738861 is 1688378.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1394761 + 7344100 = 1181^2 + 2710^2 .

It is a cyclic number.

It is not a de Polignac number, because 8738861 - 2¹⁴ = 8722477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8738801) 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, 23960 + ... + 24321.

It is an arithmetic number, because the mean of its divisors is an integer number (2196831).

Almost surely, 2^8738861 is an apocalyptic number.

It is an amenable number.

8738861 is a deficient number, since it is larger than the sum of its proper divisors (48463).

8738861 is a wasteful number, since it uses less digits than its factorization.

8738861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48462.

The product of its digits is 64512, while the sum is 41.

The square root of 8738861 is about 2956.1564572938. The cubic root of 8738861 is about 205.9767859599.

The spelling of 8738861 in words is "eight million, seven hundred thirty-eight thousand, eight hundred sixty-one".