239897763 has 12 divisors (see below), whose sum is σ = 396021808. Its totient is φ = 137084400.

The previous prime is 239897753. The next prime is 239897767. The reversal of 239897763 is 367798932.

It is not a de Polignac number, because 239897763 - 2⁸ = 239897507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (239897767) 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 11 ways as a sum of consecutive naturals, for example, 1903888 + ... + 1904013.

Almost surely, 2^239897763 is an apocalyptic number.

239897763 is a deficient number, since it is larger than the sum of its proper divisors (156124045).

239897763 is a wasteful number, since it uses less digits than its factorization.

239897763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3807914 (or 3807911 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 54.

The square root of 239897763 is about 15488.6333483623. The cubic root of 239897763 is about 621.3582458439.

The spelling of 239897763 in words is "two hundred thirty-nine million, eight hundred ninety-seven thousand, seven hundred sixty-three".