998475278 has 16 divisors (see below), whose sum is σ = 1557934560. Its totient is φ = 479354400.

The previous prime is 998475277. The next prime is 998475293. The reversal of 998475278 is 872574899.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998475277) 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, 37058 + ... + 58053.

It is an arithmetic number, because the mean of its divisors is an integer number (97370910).

Almost surely, 2^998475278 is an apocalyptic number.

998475278 is a deficient number, since it is larger than the sum of its proper divisors (559459282).

998475278 is a wasteful number, since it uses less digits than its factorization.

998475278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95323.

The product of its digits is 10160640, while the sum is 59.

The square root of 998475278 is about 31598.6594335899. The cubic root of 998475278 is about 999.4915008057.

The spelling of 998475278 in words is "nine hundred ninety-eight million, four hundred seventy-five thousand, two hundred seventy-eight".