9687401556 has 48 divisors (see below), whose sum is σ = 26956253184. Its totient is φ = 2647488096.

The previous prime is 9687401551. The next prime is 9687401557. The reversal of 9687401556 is 6551047869.

It is a super-2 number, since 2×9687401556² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9687401499 and 9687401508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9687401551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2505160 + ... + 2509023.

It is an arithmetic number, because the mean of its divisors is an integer number (561588608).

Almost surely, 2^9687401556 is an apocalyptic number.

It is an amenable number.

9687401556 is an abundant number, since it is smaller than the sum of its proper divisors (17268851628).

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

9687401556 is a wasteful number, since it uses less digits than its factorization.

9687401556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5014220 (or 5014218 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 51.

The square root of 9687401556 is about 98424.5983278570. The cubic root of 9687401556 is about 2131.7475248595.

The spelling of 9687401556 in words is "nine billion, six hundred eighty-seven million, four hundred one thousand, five hundred fifty-six".