1223700 has 36 divisors (see below), whose sum is σ = 3541440. Its totient is φ = 326240.

The previous prime is 1223693. The next prime is 1223723. The reversal of 1223700 is 73221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1223700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1740 + ... + 2339.

2^1223700 is an apocalyptic number.

1223700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223700 is an abundant number, since it is smaller than the sum of its proper divisors (2317740).

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

1223700 is a wasteful number, since it uses less digits than its factorization.

1223700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4096 (or 4089 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 1223700 is about 1106.2097450303. The cubic root of 1223700 is about 106.9608847623.

Adding to 1223700 its reverse (73221), we get a palindrome (1296921).

The spelling of 1223700 in words is "one million, two hundred twenty-three thousand, seven hundred".