1612906 has 4 divisors (see below), whose sum is σ = 2419362. Its totient is φ = 806452.

The previous prime is 1612903. The next prime is 1612913. The reversal of 1612906 is 6092161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6092161 = 37 ⋅164653.

It can be written as a sum of positive squares in only one way, i.e., 819025 + 793881 = 905^2 + 891^2 .

It is not an unprimeable number, because it can be changed into a prime (1612903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403225 + ... + 403228.

2^1612906 is an apocalyptic number.

1612906 is a deficient number, since it is larger than the sum of its proper divisors (806456).

1612906 is an equidigital number, since it uses as much as digits as its factorization.

1612906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806455.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 1612906 is about 1270.0023622025. The cubic root of 1612906 is about 117.2743458521.

The spelling of 1612906 in words is "one million, six hundred twelve thousand, nine hundred six".