612227089 has 4 divisors (see below), whose sum is σ = 612973620. Its totient is φ = 611480560.

The previous prime is 612227081. The next prime is 612227111. The reversal of 612227089 is 980722216.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 347188689 + 265038400 = 18633^2 + 16280^2 .

It is a cyclic number.

It is not a de Polignac number, because 612227089 - 2³ = 612227081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612227081) 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, 372034 + ... + 373675.

It is an arithmetic number, because the mean of its divisors is an integer number (153243405).

Almost surely, 2^612227089 is an apocalyptic number.

It is an amenable number.

612227089 is a deficient number, since it is larger than the sum of its proper divisors (746531).

612227089 is an equidigital number, since it uses as much as digits as its factorization.

612227089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746530.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 612227089 is about 24743.2230923944. The cubic root of 612227089 is about 849.1234742862.

The spelling of 612227089 in words is "six hundred twelve million, two hundred twenty-seven thousand, eighty-nine".