100722407 has 8 divisors (see below), whose sum is σ = 103780560. Its totient is φ = 97709760.

The previous prime is 100722403. The next prime is 100722421. The reversal of 100722407 is 704227001.

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

It is a cyclic number.

It is not a de Polignac number, because 100722407 - 2² = 100722403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100722403) by changing a digit.

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, 6857 + ... + 15762.

It is an arithmetic number, because the mean of its divisors is an integer number (12972570).

Almost surely, 2^100722407 is an apocalyptic number.

100722407 is a deficient number, since it is larger than the sum of its proper divisors (3058153).

100722407 is an equidigital number, since it uses as much as digits as its factorization.

100722407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22753.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 100722407 is about 10036.0553505847. The cubic root of 100722407 is about 465.2739080721.

Adding to 100722407 its reverse (704227001), we get a palindrome (804949408).

The spelling of 100722407 in words is "one hundred million, seven hundred twenty-two thousand, four hundred seven".