612741992 has 8 divisors (see below), whose sum is σ = 1148891250. Its totient is φ = 306370992.

The previous prime is 612741991. The next prime is 612742019. The reversal of 612741992 is 299147216.

It can be written as a sum of positive squares in only one way, i.e., 546904996 + 65836996 = 23386^2 + 8114^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (612741991) 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 as a sum of consecutive naturals, namely, 38296367 + ... + 38296382.

Almost surely, 2^612741992 is an apocalyptic number.

It is an amenable number.

612741992 is a deficient number, since it is larger than the sum of its proper divisors (536149258).

612741992 is a wasteful number, since it uses less digits than its factorization.

612741992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76592755 (or 76592751 counting only the distinct ones).

The product of its digits is 54432, while the sum is 41.

The square root of 612741992 is about 24753.6258354206. The cubic root of 612741992 is about 849.3614544509.

The spelling of 612741992 in words is "six hundred twelve million, seven hundred forty-one thousand, nine hundred ninety-two".