618470 has 16 divisors (see below), whose sum is σ = 1162080. Its totient is φ = 236544.

The previous prime is 618463. The next prime is 618509. The reversal of 618470 is 74816.

It is a congruent number.

It is an unprimeable number.

618470 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 1115 + ... + 1574.

It is an arithmetic number, because the mean of its divisors is an integer number (72630).

2⁶¹⁸⁴⁷⁰ is an apocalyptic number.

618470 is a deficient number, since it is larger than the sum of its proper divisors (543610).

618470 is a wasteful number, since it uses less digits than its factorization.

618470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2719.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 618470 is about 786.4286363047. The cubic root of 618470 is about 85.1999904487.

The spelling of 618470 in words is "six hundred eighteen thousand, four hundred seventy".