1097538 has 16 divisors (see below), whose sum is σ = 2364096. Its totient is φ = 337680.

The previous prime is 1097533. The next prime is 1097539. The reversal of 1097538 is 8357901.

It is a super-2 number, since 2×1097538² = 2409179322888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1097499 and 1097508.

It is not an unprimeable number, because it can be changed into a prime (1097533) 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, 6958 + ... + 7113.

It is an arithmetic number, because the mean of its divisors is an integer number (147756).

2^1097538 is an apocalyptic number.

1097538 is an abundant number, since it is smaller than the sum of its proper divisors (1266558).

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

1097538 is a wasteful number, since it uses less digits than its factorization.

1097538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14089.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 1097538 is about 1047.6344782413. The cubic root of 1097538 is about 103.1509396639.

The spelling of 1097538 in words is "one million, ninety-seven thousand, five hundred thirty-eight".