612809741 has 4 divisors (see below), whose sum is σ = 613524000. Its totient is φ = 612095484.

The previous prime is 612809737. The next prime is 612809749. The reversal of 612809741 is 147908216.

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.

It is a cyclic number.

It is not a de Polignac number, because 612809741 - 2² = 612809737 is a prime.

It is a super-4 number, since 4×612809741⁴ (a number of 36 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 612809695 and 612809704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612809749) 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, 355841 + ... + 357558.

It is an arithmetic number, because the mean of its divisors is an integer number (153381000).

Almost surely, 2^612809741 is an apocalyptic number.

It is an amenable number.

612809741 is a deficient number, since it is larger than the sum of its proper divisors (714259).

612809741 is an equidigital number, since it uses as much as digits as its factorization.

612809741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714258.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 612809741 is about 24754.9942637844. The cubic root of 612809741 is about 849.3927570596.

The spelling of 612809741 in words is "six hundred twelve million, eight hundred nine thousand, seven hundred forty-one".