1216607 has 8 divisors (see below), whose sum is σ = 1400832. Its totient is φ = 1035000.

The previous prime is 1216603. The next prime is 1216619. The reversal of 1216607 is 7066121.

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 1216607 - 2² = 1216603 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1216601) 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, 482 + ... + 1632.

It is an arithmetic number, because the mean of its divisors is an integer number (175104).

2^1216607 is an apocalyptic number.

1216607 is a deficient number, since it is larger than the sum of its proper divisors (184225).

1216607 is a wasteful number, since it uses less digits than its factorization.

1216607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1216607 is about 1102.9990933813. Note that the first 3 decimals coincide. The cubic root of 1216607 is about 106.7538230801.

The spelling of 1216607 in words is "one million, two hundred sixteen thousand, six hundred seven".