162977823 has 6 divisors (see below), whose sum is σ = 235412424. Its totient is φ = 108651876.

The previous prime is 162977813. The next prime is 162977831. The reversal of 162977823 is 328779261.

It is not a de Polignac number, because 162977823 - 2⁴ = 162977807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162977813) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9054315 + ... + 9054332.

It is an arithmetic number, because the mean of its divisors is an integer number (39235404).

Almost surely, 2^162977823 is an apocalyptic number.

162977823 is a deficient number, since it is larger than the sum of its proper divisors (72434601).

162977823 is a wasteful number, since it uses less digits than its factorization.

162977823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18108653 (or 18108650 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 162977823 is about 12766.2767869101. The cubic root of 162977823 is about 546.2307823655.

The spelling of 162977823 in words is "one hundred sixty-two million, nine hundred seventy-seven thousand, eight hundred twenty-three".