100407826 has 4 divisors (see below), whose sum is σ = 150611742. Its totient is φ = 50203912.

The previous prime is 100407823. The next prime is 100407833. The reversal of 100407826 is 628704001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 628704001 = 83 ⋅7574747.

It can be written as a sum of positive squares in only one way, i.e., 83997225 + 16410601 = 9165^2 + 4051^2 .

It is a super-3 number, since 3×100407826³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100407794 and 100407803.

It is not an unprimeable number, because it can be changed into a prime (100407823) 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 as a sum of consecutive naturals, namely, 25101955 + ... + 25101958.

Almost surely, 2^100407826 is an apocalyptic number.

100407826 is a deficient number, since it is larger than the sum of its proper divisors (50203916).

100407826 is an equidigital number, since it uses as much as digits as its factorization.

100407826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50203915.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 100407826 is about 10020.3705520305. The cubic root of 100407826 is about 464.7890143925.

The spelling of 100407826 in words is "one hundred million, four hundred seven thousand, eight hundred twenty-six".