162803997 has 6 divisors (see below), whose sum is σ = 235161342. Its totient is φ = 108535992.

The previous prime is 162803983. The next prime is 162804017. The reversal of 162803997 is 799308261.

It can be written as a sum of positive squares in only one way, i.e., 154107396 + 8696601 = 12414^2 + 2949^2 .

It is not a de Polignac number, because 162803997 - 2⁶ = 162803933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162803297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9044658 + ... + 9044675.

It is an arithmetic number, because the mean of its divisors is an integer number (39193557).

Almost surely, 2^162803997 is an apocalyptic number.

It is an amenable number.

162803997 is a deficient number, since it is larger than the sum of its proper divisors (72357345).

162803997 is a wasteful number, since it uses less digits than its factorization.

162803997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18089339 (or 18089336 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 162803997 is about 12759.4669559508. The cubic root of 162803997 is about 546.0365168991.

The spelling of 162803997 in words is "one hundred sixty-two million, eight hundred three thousand, nine hundred ninety-seven".