1097066784 has 96 divisors (see below), whose sum is σ = 3154878720. Its totient is φ = 331040000.

The previous prime is 1097066779. The next prime is 1097066791. The reversal of 1097066784 is 4876607901.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1097066784² = 2407111057112205312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262987 + ... + 267125.

It is an arithmetic number, because the mean of its divisors is an integer number (32863320).

Almost surely, 2^1097066784 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 1097066784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1577439360).

1097066784 is an abundant number, since it is smaller than the sum of its proper divisors (2057811936).

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

1097066784 is a wasteful number, since it uses less digits than its factorization.

1097066784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4414 (or 4406 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 1097066784 is about 33121.9984904293. The cubic root of 1097066784 is about 1031.3617530610.

The spelling of 1097066784 in words is "one billion, ninety-seven million, sixty-six thousand, seven hundred eighty-four".