1612423447 has 4 divisors (see below), whose sum is σ = 1613309760. Its totient is φ = 1611537136.

The previous prime is 1612423427. The next prime is 1612423459. The reversal of 1612423447 is 7443242161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7443242161 = 103 ⋅72264487.

It is a cyclic number.

It is not a de Polignac number, because 1612423447 - 2¹¹ = 1612421399 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 (1612423427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440422 + ... + 444067.

It is an arithmetic number, because the mean of its divisors is an integer number (403327440).

Almost surely, 2^1612423447 is an apocalyptic number.

1612423447 is a deficient number, since it is larger than the sum of its proper divisors (886313).

1612423447 is an equidigital number, since it uses as much as digits as its factorization.

1612423447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886312.

The product of its digits is 32256, while the sum is 34.

The square root of 1612423447 is about 40154.9928028882. The cubic root of 1612423447 is about 1172.6264921429.

The spelling of 1612423447 in words is "one billion, six hundred twelve million, four hundred twenty-three thousand, four hundred forty-seven".