998802951 has 16 divisors (see below), whose sum is σ = 1343806464. Its totient is φ = 659862144.

The previous prime is 998802947. The next prime is 998802953. The reversal of 998802951 is 159208899.

It is not a de Polignac number, because 998802951 - 2² = 998802947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 998802894 and 998802903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998802953) 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 15 ways as a sum of consecutive naturals, for example, 148575 + ... + 155151.

It is an arithmetic number, because the mean of its divisors is an integer number (83987904).

Almost surely, 2^998802951 is an apocalyptic number.

998802951 is a deficient number, since it is larger than the sum of its proper divisors (345003513).

998802951 is a wasteful number, since it uses less digits than its factorization.

998802951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7030.

The product of its (nonzero) digits is 466560, while the sum is 51.

The square root of 998802951 is about 31603.8439275984. The cubic root of 998802951 is about 999.6008243467.

It can be divided in two parts, 99880 and 2951, that added together give a triangular number (102831 = T₄₅₃).

The spelling of 998802951 in words is "nine hundred ninety-eight million, eight hundred two thousand, nine hundred fifty-one".