1220007 has 8 divisors (see below), whose sum is σ = 1657584. Its totient is φ = 797888.

The previous prime is 1219991. The next prime is 1220027. The reversal of 1220007 is 7000221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1220007 - 2⁴ = 1219991 is a prime.

1220007 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1219974 and 1220001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220027) 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, 3678 + ... + 3995.

It is an arithmetic number, because the mean of its divisors is an integer number (207198).

2^1220007 is an apocalyptic number.

1220007 is a deficient number, since it is larger than the sum of its proper divisors (437577).

1220007 is an equidigital number, since it uses as much as digits as its factorization.

1220007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7729.

The product of its (nonzero) digits is 28, while the sum is 12.

The square root of 1220007 is about 1104.5392704653. The cubic root of 1220007 is about 106.8531773781.

Adding to 1220007 its reverse (7000221), we get a palindrome (8220228).

The spelling of 1220007 in words is "one million, two hundred twenty thousand, seven".