8779397 has 18 divisors (see below), whose sum is σ = 10105074. Its totient is φ = 7619040.

The previous prime is 8779391. The next prime is 8779403. The reversal of 8779397 is 7939778.

8779397 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 (8779391) and next prime (8779403).

It can be written as a sum of positive squares in 3 ways, for example, as 5909761 + 2869636 = 2431^2 + 1694^2 .

It is not a de Polignac number, because 8779397 - 2¹² = 8775301 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 (8779391) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 165623 + ... + 165675.

It is an arithmetic number, because the mean of its divisors is an integer number (561393).

Almost surely, 2^8779397 is an apocalyptic number.

It is an amenable number.

8779397 is a deficient number, since it is larger than the sum of its proper divisors (1325677).

8779397 is a wasteful number, since it uses less digits than its factorization.

8779397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 101 counting only the distinct ones).

The product of its digits is 666792, while the sum is 50.

The square root of 8779397 is about 2963.0047249372. The cubic root of 8779397 is about 206.2947754640.

The spelling of 8779397 in words is "eight million, seven hundred seventy-nine thousand, three hundred ninety-seven".