1097865852 has 24 divisors (see below), whose sum is σ = 2621262336. Its totient is φ = 357444528.

The previous prime is 1097865841. The next prime is 1097865863. The reversal of 1097865852 is 2585687901.

It is an interprime number because it is at equal distance from previous prime (1097865841) and next prime (1097865863).

It is a junction number, because it is equal to n+sod(n) for n = 1097865795 and 1097865804.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1063308 + ... + 1064339.

It is an arithmetic number, because the mean of its divisors is an integer number (109219264).

Almost surely, 2^1097865852 is an apocalyptic number.

1097865852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1097865852 is an abundant number, since it is smaller than the sum of its proper divisors (1523396484).

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

1097865852 is a wasteful number, since it uses less digits than its factorization.

1097865852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2127697 (or 2127695 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 51.

The square root of 1097865852 is about 33134.0587915215. The cubic root of 1097865852 is about 1031.6120958164.

The spelling of 1097865852 in words is "one billion, ninety-seven million, eight hundred sixty-five thousand, eight hundred fifty-two".