1097731068 has 24 divisors (see below), whose sum is σ = 2927283072. Its totient is φ = 313637424.

The previous prime is 1097731067. The next prime is 1097731069. The reversal of 1097731068 is 8601377901.

It is an interprime number because it is at equal distance from previous prime (1097731067) and next prime (1097731069).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1097731067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6534030 + ... + 6534197.

It is an arithmetic number, because the mean of its divisors is an integer number (121970128).

Almost surely, 2^1097731068 is an apocalyptic number.

It is an amenable number.

1097731068 is an abundant number, since it is smaller than the sum of its proper divisors (1829552004).

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

1097731068 is a wasteful number, since it uses less digits than its factorization.

1097731068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13068241 (or 13068239 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 1097731068 is about 33132.0248098422. The cubic root of 1097731068 is about 1031.5698773933.

The spelling of 1097731068 in words is "one billion, ninety-seven million, seven hundred thirty-one thousand, sixty-eight".