615622 has 8 divisors (see below), whose sum is σ = 1055376. Its totient is φ = 263832.

The previous prime is 615617. The next prime is 615623. The reversal of 615622 is 226516.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 615593 and 615602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (615623) 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, 21973 + ... + 22000.

It is an arithmetic number, because the mean of its divisors is an integer number (131922).

2⁶¹⁵⁶²² is an apocalyptic number.

615622 is a deficient number, since it is larger than the sum of its proper divisors (439754).

615622 is a wasteful number, since it uses less digits than its factorization.

615622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43982.

The product of its digits is 720, while the sum is 22.

The square root of 615622 is about 784.6158295625. The cubic root of 615622 is about 85.0690097013.

The spelling of 615622 in words is "six hundred fifteen thousand, six hundred twenty-two".