398877632231 has 8 divisors (see below), whose sum is σ = 429613757664. Its totient is φ = 368149111200.

The previous prime is 398877632143. The next prime is 398877632243. The reversal of 398877632231 is 132236778893.

It is a happy number.

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

It is not a de Polignac number, because 398877632231 - 2¹⁴ = 398877615847 is a prime.

It is a super-2 number, since 2×398877632231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398877032231) 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, 1791920 + ... + 2002181.

It is an arithmetic number, because the mean of its divisors is an integer number (53701719708).

Almost surely, 2^398877632231 is an apocalyptic number.

398877632231 is a deficient number, since it is larger than the sum of its proper divisors (30736125433).

398877632231 is a wasteful number, since it uses less digits than its factorization.

398877632231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3802201.

The product of its digits is 18289152, while the sum is 59.

The spelling of 398877632231 in words is "three hundred ninety-eight billion, eight hundred seventy-seven million, six hundred thirty-two thousand, two hundred thirty-one".