398827958 has 32 divisors (see below), whose sum is σ = 661893120. Its totient is φ = 179578080.

The previous prime is 398827907. The next prime is 398827987. The reversal of 398827958 is 859728893.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 398827897 and 398827906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48983 + ... + 56541.

It is an arithmetic number, because the mean of its divisors is an integer number (20684160).

Almost surely, 2^398827958 is an apocalyptic number.

398827958 is a deficient number, since it is larger than the sum of its proper divisors (263065162).

398827958 is a wasteful number, since it uses less digits than its factorization.

398827958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7652.

The product of its digits is 8709120, while the sum is 59.

The square root of 398827958 is about 19970.6774547084. The cubic root of 398827958 is about 736.0859557672.

The spelling of 398827958 in words is "three hundred ninety-eight million, eight hundred twenty-seven thousand, nine hundred fifty-eight".