100422747 has 20 divisors (see below), whose sum is σ = 150525936. Its totient is φ = 66720240.

The previous prime is 100422739. The next prime is 100422769. The reversal of 100422747 is 747224001.

It is a happy number.

It is not a de Polignac number, because 100422747 - 2³ = 100422739 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 100422747.

It is not an unprimeable number, because it can be changed into a prime (100422727) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23722 + ... + 27632.

Almost surely, 2^100422747 is an apocalyptic number.

100422747 is a deficient number, since it is larger than the sum of its proper divisors (50103189).

100422747 is an equidigital number, since it uses as much as digits as its factorization.

100422747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4240 (or 4231 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 100422747 is about 10021.1150577169. The cubic root of 100422747 is about 464.8120364140.

Adding to 100422747 its reverse (747224001), we get a palindrome (847646748).

The spelling of 100422747 in words is "one hundred million, four hundred twenty-two thousand, seven hundred forty-seven".