323989977 has 4 divisors (see below), whose sum is σ = 431986640. Its totient is φ = 215993316.

The previous prime is 323989973. The next prime is 323989999. The reversal of 323989977 is 779989323.

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, and also an emirpimes, since its reverse is a distinct semiprime: 779989323 = 3 ⋅259996441.

It is not a de Polignac number, because 323989977 - 2² = 323989973 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (323989973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53998327 + ... + 53998332.

It is an arithmetic number, because the mean of its divisors is an integer number (107996660).

Almost surely, 2^323989977 is an apocalyptic number.

It is an amenable number.

323989977 is a deficient number, since it is larger than the sum of its proper divisors (107996663).

323989977 is a wasteful number, since it uses less digits than its factorization.

323989977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107996662.

The product of its digits is 5143824, while the sum is 57.

The square root of 323989977 is about 17999.7215811801. The cubic root of 323989977 is about 686.8214630696.

The spelling of 323989977 in words is "three hundred twenty-three million, nine hundred eighty-nine thousand, nine hundred seventy-seven".