1097761896 has 320 divisors, whose sum is σ = 3920400000. Its totient is φ = 284497920.

The previous prime is 1097761883. The next prime is 1097761897. The reversal of 1097761896 is 6981677901.

1097761896 is a `hidden beast` number, since 10 + 9 + 7 + 7 + 618 + 9 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1097761897) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2444680 + ... + 2445128.

It is an arithmetic number, because the mean of its divisors is an integer number (12251250).

Almost surely, 2^1097761896 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 1097761896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1960200000).

1097761896 is an abundant number, since it is smaller than the sum of its proper divisors (2822638104).

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

1097761896 is a wasteful number, since it uses less digits than its factorization.

1097761896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 54.

The square root of 1097761896 is about 33132.4900362167. The cubic root of 1097761896 is about 1031.5795339596.

The spelling of 1097761896 in words is "one billion, ninety-seven million, seven hundred sixty-one thousand, eight hundred ninety-six".