1097854 has 4 divisors (see below), whose sum is σ = 1646784. Its totient is φ = 548926.

The previous prime is 1097851. The next prime is 1097861. The reversal of 1097854 is 4587901.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1097851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274462 + ... + 274465.

It is an arithmetic number, because the mean of its divisors is an integer number (411696).

2^1097854 is an apocalyptic number.

1097854 is a deficient number, since it is larger than the sum of its proper divisors (548930).

1097854 is an equidigital number, since it uses as much as digits as its factorization.

1097854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548929.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 1097854 is about 1047.7852833477. The cubic root of 1097854 is about 103.1608383550.

It can be divided in two parts, 109 and 7854, that multiplied together give a triangular number (856086 = T₁₃₀₈).

The spelling of 1097854 in words is "one million, ninety-seven thousand, eight hundred fifty-four".