5398987356 has 72 divisors (see below), whose sum is σ = 15665351520. Its totient is φ = 1535815296.

The previous prime is 5398987343. The next prime is 5398987357. The reversal of 5398987356 is 6537898935.

5398987356 is a `hidden beast` number, since 539 + 8 + 98 + 7 + 3 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 5398987293 and 5398987302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5398987357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10930 + ... + 104486.

Almost surely, 2^5398987356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5398987356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7832675760).

5398987356 is an abundant number, since it is smaller than the sum of its proper divisors (10266364164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5398987356 is a wasteful number, since it uses less digits than its factorization.

5398987356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93803 (or 93798 counting only the distinct ones).

The product of its digits is 48988800, while the sum is 63.

The square root of 5398987356 is about 73477.8017907449. The cubic root of 5398987356 is about 1754.3009698119.

The spelling of 5398987356 in words is "five billion, three hundred ninety-eight million, nine hundred eighty-seven thousand, three hundred fifty-six".