992878259 has 4 divisors (see below), whose sum is σ = 996267216. Its totient is φ = 989489304.

The previous prime is 992878247. The next prime is 992878279. The reversal of 992878259 is 952878299.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-992878259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 992878198 and 992878207.

It is not an unprimeable number, because it can be changed into a prime (992878219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1694039 + ... + 1694624.

It is an arithmetic number, because the mean of its divisors is an integer number (249066804).

Almost surely, 2^992878259 is an apocalyptic number.

992878259 is a deficient number, since it is larger than the sum of its proper divisors (3388957).

992878259 is a wasteful number, since it uses less digits than its factorization.

992878259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3388956.

The product of its digits is 6531840, while the sum is 59.

The square root of 992878259 is about 31509.9707870382. The cubic root of 992878259 is about 997.6204284640.

The spelling of 992878259 in words is "nine hundred ninety-two million, eight hundred seventy-eight thousand, two hundred fifty-nine".