398854958 has 8 divisors (see below), whose sum is σ = 601382928. Its totient is φ = 198393984.

The previous prime is 398854957. The next prime is 398854987. The reversal of 398854958 is 859458893.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 398854897 and 398854906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398854957) 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, 516266 + ... + 517037.

It is an arithmetic number, because the mean of its divisors is an integer number (75172866).

Almost surely, 2^398854958 is an apocalyptic number.

398854958 is a deficient number, since it is larger than the sum of its proper divisors (202527970).

398854958 is a wasteful number, since it uses less digits than its factorization.

398854958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033498.

The product of its digits is 12441600, while the sum is 59.

The square root of 398854958 is about 19971.3534343569. The cubic root of 398854958 is about 736.1025659972.

The spelling of 398854958 in words is "three hundred ninety-eight million, eight hundred fifty-four thousand, nine hundred fifty-eight".