612713869 has 4 divisors (see below), whose sum is σ = 612773440. Its totient is φ = 612654300.

The previous prime is 612713863. The next prime is 612713891. The reversal of 612713869 is 968317216.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 612713869 - 2¹¹ = 612711821 is a prime.

It is a super-2 number, since 2×612713869² = 750836570529898322, 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 (612713863) 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, 9957 + ... + 36394.

It is an arithmetic number, because the mean of its divisors is an integer number (153193360).

Almost surely, 2^612713869 is an apocalyptic number.

It is an amenable number.

612713869 is a deficient number, since it is larger than the sum of its proper divisors (59571).

612713869 is a wasteful number, since it uses less digits than its factorization.

612713869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59570.

The product of its digits is 108864, while the sum is 43.

The square root of 612713869 is about 24753.0577707078. The cubic root of 612713869 is about 849.3484598801.

The spelling of 612713869 in words is "six hundred twelve million, seven hundred thirteen thousand, eight hundred sixty-nine".