1097748 has 18 divisors (see below), whose sum is σ = 2774954. Its totient is φ = 365904.

The previous prime is 1097743. The next prime is 1097783. The reversal of 1097748 is 8477901.

It can be written as a sum of positive squares in only one way, i.e., 685584 + 412164 = 828^2 + 642^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 30493 = 1097748 / (1 + 0 + 9 + 7 + 7 + 4 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1097743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15211 + ... + 15282.

2^1097748 is an apocalyptic number.

1097748 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1097748 is an abundant number, since it is smaller than the sum of its proper divisors (1677206).

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

1097748 is a wasteful number, since it uses less digits than its factorization.

1097748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30503 (or 30498 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 1097748 is about 1047.7346992440. The cubic root of 1097748 is about 103.1575181197.

It can be divided in two parts, 10977 and 48, that added together give a square (11025 = 105²).

The spelling of 1097748 in words is "one million, ninety-seven thousand, seven hundred forty-eight".