100628407 has 4 divisors (see below), whose sum is σ = 109776456. Its totient is φ = 91480360.

The previous prime is 100628401. The next prime is 100628413. The reversal of 100628407 is 704826001.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (100628401) and next prime (100628413).

It is a cyclic number.

It is not a de Polignac number, because 100628407 - 2¹¹ = 100626359 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 (100628401) 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, 4574008 + ... + 4574029.

It is an arithmetic number, because the mean of its divisors is an integer number (27444114).

Almost surely, 2^100628407 is an apocalyptic number.

100628407 is a deficient number, since it is larger than the sum of its proper divisors (9148049).

100628407 is an equidigital number, since it uses as much as digits as its factorization.

100628407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9148048.

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

The square root of 100628407 is about 10031.3711425707. The cubic root of 100628407 is about 465.1291228110.

The spelling of 100628407 in words is "one hundred million, six hundred twenty-eight thousand, four hundred seven".