617480 has 32 divisors (see below), whose sum is σ = 1425600. Its totient is φ = 240576.

The previous prime is 617479. The next prime is 617509. The reversal of 617480 is 84716.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1541 + ... + 1899.

It is an arithmetic number, because the mean of its divisors is an integer number (44550).

2⁶¹⁷⁴⁸⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 617480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (712800).

617480 is an abundant number, since it is smaller than the sum of its proper divisors (808120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

617480 is a wasteful number, since it uses less digits than its factorization.

617480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413 (or 409 counting only the distinct ones).

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

The square root of 617480 is about 785.7989564768. The cubic root of 617480 is about 85.1545056035.

The spelling of 617480 in words is "six hundred seventeen thousand, four hundred eighty".