8598201981 has 4 divisors (see below), whose sum is σ = 11464269312. Its totient is φ = 5732134652.

The previous prime is 8598201961. The next prime is 8598202001. The reversal of 8598201981 is 1891028958.

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.

It is an interprime number because it is at equal distance from previous prime (8598201961) and next prime (8598202001).

It is a cyclic number.

It is not a de Polignac number, because 8598201981 - 2¹¹ = 8598199933 is a prime.

It is a super-2 number, since 2×8598201981² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8598201961) 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, 1433033661 + ... + 1433033666.

It is an arithmetic number, because the mean of its divisors is an integer number (2866067328).

Almost surely, 2^8598201981 is an apocalyptic number.

It is an amenable number.

8598201981 is a deficient number, since it is larger than the sum of its proper divisors (2866067331).

8598201981 is a wasteful number, since it uses less digits than its factorization.

8598201981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2866067330.

The product of its (nonzero) digits is 414720, while the sum is 51.

The square root of 8598201981 is about 92726.4901794520. The cubic root of 8598201981 is about 2048.6568223714.

The spelling of 8598201981 in words is "eight billion, five hundred ninety-eight million, two hundred one thousand, nine hundred eighty-one".