617747413 has 4 divisors (see below), whose sum is σ = 617911840. Its totient is φ = 617582988.

The previous prime is 617747407. The next prime is 617747419. The reversal of 617747413 is 314747716.

It is a happy number.

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.

It is an interprime number because it is at equal distance from previous prime (617747407) and next prime (617747419).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-617747413 is a prime.

It is a super-2 number, since 2×617747413² = 763223732536385138, 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 (617747419) 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, 76443 + ... + 84136.

It is an arithmetic number, because the mean of its divisors is an integer number (154477960).

Almost surely, 2^617747413 is an apocalyptic number.

It is an amenable number.

617747413 is a deficient number, since it is larger than the sum of its proper divisors (164427).

617747413 is a wasteful number, since it uses less digits than its factorization.

617747413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164426.

The product of its digits is 98784, while the sum is 40.

The square root of 617747413 is about 24854.5250004904. The cubic root of 617747413 is about 851.6679649304.

The spelling of 617747413 in words is "six hundred seventeen million, seven hundred forty-seven thousand, four hundred thirteen".