612357989 has 8 divisors (see below), whose sum is σ = 614688000. Its totient is φ = 610033536.

The previous prime is 612357959. The next prime is 612358007. The reversal of 612357989 is 989753216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 612357989 - 2²⁸ = 343922533 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 (612357929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407762 + ... + 409260.

It is an arithmetic number, because the mean of its divisors is an integer number (76836000).

Almost surely, 2^612357989 is an apocalyptic number.

It is an amenable number.

612357989 is a deficient number, since it is larger than the sum of its proper divisors (2330011).

612357989 is a wasteful number, since it uses less digits than its factorization.

612357989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2779.

The product of its digits is 816480, while the sum is 50.

The square root of 612357989 is about 24745.8681197488. The cubic root of 612357989 is about 849.1839868770.

The spelling of 612357989 in words is "six hundred twelve million, three hundred fifty-seven thousand, nine hundred eighty-nine".