1097989533 has 16 divisors (see below), whose sum is σ = 1627185600. Its totient is φ = 731752560.

The previous prime is 1097989531. The next prime is 1097989567. The reversal of 1097989533 is 3359897901.

1097989533 is a `hidden beast` number, since 10 + 9 + 7 + 98 + 9 + 533 = 666.

It is not a de Polignac number, because 1097989533 - 2¹ = 1097989531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1097989533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1097989531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122323 + ... + 130991.

It is an arithmetic number, because the mean of its divisors is an integer number (101699100).

Almost surely, 2^1097989533 is an apocalyptic number.

It is an amenable number.

1097989533 is a deficient number, since it is larger than the sum of its proper divisors (529196067).

1097989533 is an equidigital number, since it uses as much as digits as its factorization.

1097989533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13369 (or 13363 counting only the distinct ones).

The product of its (nonzero) digits is 1837080, while the sum is 54.

The square root of 1097989533 is about 33135.9251115764. The cubic root of 1097989533 is about 1031.6508334042.

The spelling of 1097989533 in words is "one billion, ninety-seven million, nine hundred eighty-nine thousand, five hundred thirty-three".