8017997 has 4 divisors (see below), whose sum is σ = 8634780. Its totient is φ = 7401216.

The previous prime is 8017993. The next prime is 8018027. The reversal of 8017997 is 7997108.

8017997 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 2869636 + 5148361 = 1694^2 + 2269^2 .

It is a cyclic number.

It is not a de Polignac number, because 8017997 - 2² = 8017993 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 (8017991) 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, 308372 + ... + 308397.

It is an arithmetic number, because the mean of its divisors is an integer number (2158695).

Almost surely, 2^8017997 is an apocalyptic number.

It is an amenable number.

8017997 is a deficient number, since it is larger than the sum of its proper divisors (616783).

8017997 is a wasteful number, since it uses less digits than its factorization.

8017997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616782.

The product of its (nonzero) digits is 31752, while the sum is 41.

The square root of 8017997 is about 2831.6067876737. The cubic root of 8017997 is about 200.1498626778.

The spelling of 8017997 in words is "eight million, seventeen thousand, nine hundred ninety-seven".