100009478 has 16 divisors (see below), whose sum is σ = 152137440. Its totient is φ = 49300416.

The previous prime is 100009477. The next prime is 100009499. The reversal of 100009478 is 874900001.

It is a self number, because there is not a number n which added to its sum of digits gives 100009478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100009477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88976 + ... + 90092.

It is an arithmetic number, because the mean of its divisors is an integer number (9508590).

Almost surely, 2^100009478 is an apocalyptic number.

100009478 is a deficient number, since it is larger than the sum of its proper divisors (52127962).

100009478 is a wasteful number, since it uses less digits than its factorization.

100009478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 100009478 is about 10000.4738887715. The cubic root of 100009478 is about 464.1735472243.

Adding to 100009478 its reverse (874900001), we get a palindrome (974909479).

The spelling of 100009478 in words is "one hundred million, nine thousand, four hundred seventy-eight".