162677993 has 2 divisors, whose sum is σ = 162677994. Its totient is φ = 162677992.

The previous prime is 162677989. The next prime is 162678059. The reversal of 162677993 is 399776261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118548544 + 44129449 = 10888^2 + 6643^2 .

It is a cyclic number.

It is not a de Polignac number, because 162677993 - 2² = 162677989 is a prime.

It is not a weakly prime, because it can be changed into another prime (162677903) 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 as a sum of consecutive naturals, namely, 81338996 + 81338997.

It is an arithmetic number, because the mean of its divisors is an integer number (81338997).

Almost surely, 2^162677993 is an apocalyptic number.

It is an amenable number.

162677993 is a deficient number, since it is larger than the sum of its proper divisors (1).

162677993 is an equidigital number, since it uses as much as digits as its factorization.

162677993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 857304, while the sum is 50.

The square root of 162677993 is about 12754.5283331059. The cubic root of 162677993 is about 545.8956101556.

The spelling of 162677993 in words is "one hundred sixty-two million, six hundred seventy-seven thousand, nine hundred ninety-three".