617220413 has 4 divisors (see below), whose sum is σ = 617336928. Its totient is φ = 617103900.

The previous prime is 617220407. The next prime is 617220419. The reversal of 617220413 is 314022716.

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 (617220407) and next prime (617220419).

It is a cyclic number.

It is not a de Polignac number, because 617220413 - 2⁴ = 617220397 is a prime.

It is a super-2 number, since 2×617220413² = 761922076447781138, 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 (617220419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49913 + ... + 61038.

It is an arithmetic number, because the mean of its divisors is an integer number (154334232).

Almost surely, 2^617220413 is an apocalyptic number.

It is an amenable number.

617220413 is a deficient number, since it is larger than the sum of its proper divisors (116515).

617220413 is a wasteful number, since it uses less digits than its factorization.

617220413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116514.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 617220413 is about 24843.9210472099. The cubic root of 617220413 is about 851.4257101941.

The spelling of 617220413 in words is "six hundred seventeen million, two hundred twenty thousand, four hundred thirteen".