612578934 has 48 divisors (see below), whose sum is σ = 1455998544. Its totient is φ = 184593600.

The previous prime is 612578933. The next prime is 612578963. The reversal of 612578934 is 439875216.

It is a self number, because there is not a number n which added to its sum of digits gives 612578934.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612578933) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27292 + ... + 44384.

It is an arithmetic number, because the mean of its divisors is an integer number (30333303).

Almost surely, 2^612578934 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612578934, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (727999272).

612578934 is an abundant number, since it is smaller than the sum of its proper divisors (843419610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

612578934 is a wasteful number, since it uses less digits than its factorization.

612578934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17293 (or 17290 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 612578934 is about 24750.3319977733. The cubic root of 612578934 is about 849.2861060069.

The spelling of 612578934 in words is "six hundred twelve million, five hundred seventy-eight thousand, nine hundred thirty-four".