612660 has 24 divisors (see below), whose sum is σ = 1715616. Its totient is φ = 163360.

The previous prime is 612649. The next prime is 612671. The reversal of 612660 is 66216.

It is an interprime number because it is at equal distance from previous prime (612649) and next prime (612671).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5046 + ... + 5165.

It is an arithmetic number, because the mean of its divisors is an integer number (71484).

2⁶¹²⁶⁶⁰ is an apocalyptic number.

612660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

612660 is an abundant number, since it is smaller than the sum of its proper divisors (1102956).

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

612660 is a wasteful number, since it uses less digits than its factorization.

612660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10223 (or 10221 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 612660 is about 782.7260057006. The cubic root of 612660 is about 84.9323567950.

Adding to 612660 its reverse (66216), we get a palindrome (678876).

The spelling of 612660 in words is "six hundred twelve thousand, six hundred sixty".