8051997 has 4 divisors (see below), whose sum is σ = 10736000. Its totient is φ = 5367996.

The previous prime is 8051969. The next prime is 8052007. The reversal of 8051997 is 7991508.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8051997 - 2¹¹ = 8049949 is a prime.

It is a Duffinian number.

8051997 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8051947) 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, 1341997 + ... + 1342002.

It is an arithmetic number, because the mean of its divisors is an integer number (2684000).

Almost surely, 2^8051997 is an apocalyptic number.

It is an amenable number.

8051997 is a deficient number, since it is larger than the sum of its proper divisors (2684003).

8051997 is a wasteful number, since it uses less digits than its factorization.

8051997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2684002.

The product of its (nonzero) digits is 22680, while the sum is 39.

The square root of 8051997 is about 2837.6040950069. The cubic root of 8051997 is about 200.4323729280.

The spelling of 8051997 in words is "eight million, fifty-one thousand, nine hundred ninety-seven".