1097850 has 48 divisors (see below), whose sum is σ = 2937312. Its totient is φ = 269760.

The previous prime is 1097849. The next prime is 1097851. The reversal of 1097850 is 587901.

It is an interprime number because it is at equal distance from previous prime (1097849) and next prime (1097851).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon 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 in 23 ways as a sum of consecutive naturals, for example, 1669 + ... + 2231.

It is an arithmetic number, because the mean of its divisors is an integer number (61194).

2^1097850 is an apocalyptic number.

1097850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1097850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1468656).

1097850 is an abundant number, since it is smaller than the sum of its proper divisors (1839462).

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

1097850 is a wasteful number, since it uses less digits than its factorization.

1097850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591 (or 586 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 1097850 is about 1047.7833745579. The cubic root of 1097850 is about 103.1607130670.

The spelling of 1097850 in words is "one million, ninety-seven thousand, eight hundred fifty".