47994605 has 4 divisors (see below), whose sum is σ = 57593532. Its totient is φ = 38395680.

The previous prime is 47994577. The next prime is 47994613. The reversal of 47994605 is 50649974.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50649974 = 2 ⋅25324987.

It can be written as a sum of positive squares in 2 ways, for example, as 5822569 + 42172036 = 2413^2 + 6494^2 .

It is not a de Polignac number, because 47994605 - 2¹⁰ = 47993581 is a prime.

It is a super-3 number, since 3×47994605³ (a number of 24 digits) contains 333 as substring.

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 3 ways as a sum of consecutive naturals, for example, 4799456 + ... + 4799465.

It is an arithmetic number, because the mean of its divisors is an integer number (14398383).

Almost surely, 2^47994605 is an apocalyptic number.

It is an amenable number.

47994605 is a deficient number, since it is larger than the sum of its proper divisors (9598927).

47994605 is an equidigital number, since it uses as much as digits as its factorization.

47994605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9598926.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 47994605 is about 6927.8138687468. The cubic root of 47994605 is about 363.4105022707.

The spelling of 47994605 in words is "forty-seven million, nine hundred ninety-four thousand, six hundred five".