47420605 has 8 divisors (see below), whose sum is σ = 57031992. Its totient is φ = 37851648.

The previous prime is 47420579. The next prime is 47420617. The reversal of 47420605 is 50602474.

It can be written as a sum of positive squares in 4 ways, for example, as 8145316 + 39275289 = 2854^2 + 6267^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47420605 - 2⁵ = 47420573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8092 + ... + 12661.

It is an arithmetic number, because the mean of its divisors is an integer number (7128999).

Almost surely, 2^47420605 is an apocalyptic number.

It is an amenable number.

47420605 is a deficient number, since it is larger than the sum of its proper divisors (9611387).

47420605 is a wasteful number, since it uses less digits than its factorization.

47420605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21215.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 47420605 is about 6886.2620484556. The cubic root of 47420605 is about 361.9559305550.

The spelling of 47420605 in words is "forty-seven million, four hundred twenty thousand, six hundred five".