998824807 has 8 divisors (see below), whose sum is σ = 1004385536. Its totient is φ = 993279672.

The previous prime is 998824793. The next prime is 998824831. The reversal of 998824807 is 708428899.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 998824807 - 2⁷ = 998824679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998824207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138628 + ... + 145654.

It is an arithmetic number, because the mean of its divisors is an integer number (125548192).

Almost surely, 2^998824807 is an apocalyptic number.

998824807 is a deficient number, since it is larger than the sum of its proper divisors (5560729).

998824807 is a wasteful number, since it uses less digits than its factorization.

998824807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7797.

The product of its (nonzero) digits is 2322432, while the sum is 55.

The square root of 998824807 is about 31604.1897064297. The cubic root of 998824807 is about 999.6081154466.

The spelling of 998824807 in words is "nine hundred ninety-eight million, eight hundred twenty-four thousand, eight hundred seven".