998475877 has 8 divisors (see below), whose sum is σ = 1159822592. Its totient is φ = 841806000.

The previous prime is 998475853. The next prime is 998475889. The reversal of 998475877 is 778574899.

It is a happy number.

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

It is not a de Polignac number, because 998475877 - 2¹¹ = 998473829 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 (998475817) 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, 1168749 + ... + 1169602.

It is an arithmetic number, because the mean of its divisors is an integer number (144977824).

Almost surely, 2^998475877 is an apocalyptic number.

998475877 is the 18244-th hex number.

It is an amenable number.

998475877 is a deficient number, since it is larger than the sum of its proper divisors (161346715).

998475877 is a wasteful number, since it uses less digits than its factorization.

998475877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2338419.

The product of its digits is 35562240, while the sum is 64.

The square root of 998475877 is about 31598.6689118387. The cubic root of 998475877 is about 999.4917006756.

The spelling of 998475877 in words is "nine hundred ninety-eight million, four hundred seventy-five thousand, eight hundred seventy-seven".