100722 has 8 divisors (see below), whose sum is σ = 201456. Its totient is φ = 33572.

The previous prime is 100703. The next prime is 100733. The reversal of 100722 is 227001.

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

100722 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 100698 and 100707.

It is an unprimeable number.

100722 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8388 + ... + 8399.

It is an arithmetic number, because the mean of its divisors is an integer number (25182).

2¹⁰⁰⁷²² is an apocalyptic number.

100722 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

100722 is a wasteful number, since it uses less digits than its factorization.

100722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16792.

The product of its (nonzero) digits is 28, while the sum is 12.

The square root of 100722 is about 317.3672951014. The cubic root of 100722 is about 46.5273281377.

Adding to 100722 its reverse (227001), we get a palindrome (327723).

The spelling of 100722 in words is "one hundred thousand, seven hundred twenty-two", and thus it is an iban number.