472978105 has 4 divisors (see below), whose sum is σ = 567573732. Its totient is φ = 378382480.

The previous prime is 472978087. The next prime is 472978109. The reversal of 472978105 is 501879274.

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

It can be written as a sum of positive squares in 2 ways, for example, as 169208064 + 303770041 = 13008^2 + 17429^2 .

It is not a de Polignac number, because 472978105 - 2¹⁵ = 472945337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (472978109) 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 in 3 ways as a sum of consecutive naturals, for example, 47297806 + ... + 47297815.

It is an arithmetic number, because the mean of its divisors is an integer number (141893433).

Almost surely, 2^472978105 is an apocalyptic number.

It is an amenable number.

472978105 is a deficient number, since it is larger than the sum of its proper divisors (94595627).

472978105 is an equidigital number, since it uses as much as digits as its factorization.

472978105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94595626.

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 472978105 is about 21748.0597985200. The cubic root of 472978105 is about 779.1367312065.

The spelling of 472978105 in words is "four hundred seventy-two million, nine hundred seventy-eight thousand, one hundred five".