612724469 has 6 divisors (see below), whose sum is σ = 712761174. Its totient is φ = 525192360.

The previous prime is 612724457. The next prime is 612724471. The reversal of 612724469 is 964427216.

It can be written as a sum of positive squares in only one way, i.e., 610584100 + 2140369 = 24710^2 + 1463^2 .

It is a de Polignac number, because none of the positive numbers 2^k-612724469 is a prime.

It is a super-2 number, since 2×612724469² = 750862549822663922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612724069) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6252242 + ... + 6252339.

It is an arithmetic number, because the mean of its divisors is an integer number (118793529).

Almost surely, 2^612724469 is an apocalyptic number.

It is an amenable number.

612724469 is a deficient number, since it is larger than the sum of its proper divisors (100036705).

612724469 is a wasteful number, since it uses less digits than its factorization.

612724469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12504595 (or 12504588 counting only the distinct ones).

The product of its digits is 145152, while the sum is 41.

The square root of 612724469 is about 24753.2718847428. The cubic root of 612724469 is about 849.3533577844.

The spelling of 612724469 in words is "six hundred twelve million, seven hundred twenty-four thousand, four hundred sixty-nine".