1206629 has 4 divisors (see below), whose sum is σ = 1209120. Its totient is φ = 1204140.

The previous prime is 1206619. The next prime is 1206637. The reversal of 1206629 is 9266021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9266021 = 37 ⋅250433.

It is a cyclic number.

It is not a de Polignac number, because 1206629 - 2¹⁶ = 1141093 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1206598 and 1206607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257 + ... + 1574.

It is an arithmetic number, because the mean of its divisors is an integer number (302280).

2^1206629 is an apocalyptic number.

It is an amenable number.

1206629 is a deficient number, since it is larger than the sum of its proper divisors (2491).

1206629 is an equidigital number, since it uses as much as digits as its factorization.

1206629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2490.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1206629 is about 1098.4666585746. The cubic root of 1206629 is about 106.4611744712.

The spelling of 1206629 in words is "one million, two hundred six thousand, six hundred twenty-nine".