612894543 has 4 divisors (see below), whose sum is σ = 817192728. Its totient is φ = 408596360.

The previous prime is 612894517. The next prime is 612894551. The reversal of 612894543 is 345498216.

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

It is a cyclic number.

It is not a de Polignac number, because 612894543 - 2⁶ = 612894479 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 612894495 and 612894504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612894553) 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, 102149088 + ... + 102149093.

It is an arithmetic number, because the mean of its divisors is an integer number (204298182).

Almost surely, 2^612894543 is an apocalyptic number.

612894543 is a deficient number, since it is larger than the sum of its proper divisors (204298185).

612894543 is a wasteful number, since it uses less digits than its factorization.

612894543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204298184.

The product of its digits is 207360, while the sum is 42.

The square root of 612894543 is about 24756.7070306210. The cubic root of 612894543 is about 849.4319355504.

The spelling of 612894543 in words is "six hundred twelve million, eight hundred ninety-four thousand, five hundred forty-three".