98831641 has 4 divisors (see below), whose sum is σ = 99542800. Its totient is φ = 98120484.

The previous prime is 98831639. The next prime is 98831671. The reversal of 98831641 is 14613889.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14613889 = 89 ⋅164201.

It is a cyclic number.

It is not a de Polignac number, because 98831641 - 2¹ = 98831639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 98831594 and 98831603.

It is not an unprimeable number, because it can be changed into a prime (98831671) 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, 355371 + ... + 355648.

It is an arithmetic number, because the mean of its divisors is an integer number (24885700).

Almost surely, 2^98831641 is an apocalyptic number.

98831641 is the 6288-th centered pentagonal number.

It is an amenable number.

98831641 is a deficient number, since it is larger than the sum of its proper divisors (711159).

98831641 is a wasteful number, since it uses less digits than its factorization.

98831641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711158.

The product of its digits is 41472, while the sum is 40.

The square root of 98831641 is about 9941.4104130148. The cubic root of 98831641 is about 462.3441165433.

The spelling of 98831641 in words is "ninety-eight million, eight hundred thirty-one thousand, six hundred forty-one".