100478479 has 4 divisors (see below), whose sum is σ = 105766840. Its totient is φ = 95190120.

The previous prime is 100478461. The next prime is 100478491. The reversal of 100478479 is 974874001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 974874001 = 61 ⋅15981541.

It is a cyclic number.

It is not a de Polignac number, because 100478479 - 2⁵ = 100478447 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 (100478429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2644152 + ... + 2644189.

It is an arithmetic number, because the mean of its divisors is an integer number (26441710).

Almost surely, 2^100478479 is an apocalyptic number.

100478479 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

100478479 is a deficient number, since it is larger than the sum of its proper divisors (5288361).

100478479 is an equidigital number, since it uses as much as digits as its factorization.

100478479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5288360.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 100478479 is about 10023.8954004918. The cubic root of 100478479 is about 464.8980066896.

The spelling of 100478479 in words is "one hundred million, four hundred seventy-eight thousand, four hundred seventy-nine".