398826076093 has 4 divisors (see below), whose sum is σ = 401131429308. Its totient is φ = 396520722880.

The previous prime is 398826076081. The next prime is 398826076151. The reversal of 398826076093 is 390670628893.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 356775652249 + 42050423844 = 597307^2 + 205062^2 .

It is a cyclic number.

It is not a de Polignac number, because 398826076093 - 2⁹ = 398826075581 is a prime.

It is a super-2 number, since 2×398826076093² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398826076993) 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, 1152676348 + ... + 1152676693.

It is an arithmetic number, because the mean of its divisors is an integer number (100282857327).

Almost surely, 2^398826076093 is an apocalyptic number.

It is an amenable number.

398826076093 is a deficient number, since it is larger than the sum of its proper divisors (2305353215).

398826076093 is a wasteful number, since it uses less digits than its factorization.

398826076093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2305353214.

The product of its (nonzero) digits is 23514624, while the sum is 61.

The spelling of 398826076093 in words is "three hundred ninety-eight billion, eight hundred twenty-six million, seventy-six thousand, ninety-three".