398410791 has 24 divisors (see below), whose sum is σ = 578778624. Its totient is φ = 243490320.

The previous prime is 398410777. The next prime is 398410813. The reversal of 398410791 is 197014893.

It is a happy number.

It is not a de Polignac number, because 398410791 - 2¹⁵ = 398378023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398410741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27640 + ... + 39506.

It is an arithmetic number, because the mean of its divisors is an integer number (24115776).

Almost surely, 2^398410791 is an apocalyptic number.

398410791 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

398410791 is a deficient number, since it is larger than the sum of its proper divisors (180367833).

398410791 is a wasteful number, since it uses less digits than its factorization.

398410791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11939 (or 11920 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 398410791 is about 19960.2302341431. The cubic root of 398410791 is about 735.8292219303.

The spelling of 398410791 in words is "three hundred ninety-eight million, four hundred ten thousand, seven hundred ninety-one".