163676477 has 2 divisors, whose sum is σ = 163676478. Its totient is φ = 163676476.

The previous prime is 163676473. The next prime is 163676543. The reversal of 163676477 is 774676361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99580441 + 64096036 = 9979^2 + 8006^2 .

It is a cyclic number.

It is not a de Polignac number, because 163676477 - 2² = 163676473 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163676473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81838238 + 81838239.

It is an arithmetic number, because the mean of its divisors is an integer number (81838239).

Almost surely, 2^163676477 is an apocalyptic number.

It is an amenable number.

163676477 is a deficient number, since it is larger than the sum of its proper divisors (1).

163676477 is an equidigital number, since it uses as much as digits as its factorization.

163676477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 889056, while the sum is 47.

The square root of 163676477 is about 12793.6107882021. The cubic root of 163676477 is about 547.0101978097.

The spelling of 163676477 in words is "one hundred sixty-three million, six hundred seventy-six thousand, four hundred seventy-seven".