47494693 has 4 divisors (see below), whose sum is σ = 47516620. Its totient is φ = 47472768.

The previous prime is 47494673. The next prime is 47494709. The reversal of 47494693 is 39649474.

47494693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is the 2814-th star number.

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 21095649 + 26399044 = 4593^2 + 5138^2 .

It is a 4-Lehmer number, since φ(47494693) divides (47494693-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 47494693 - 2¹³ = 47486501 is a prime.

It is a deceptive number, since it divides R_47494692.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47494673) 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, 7308 + ... + 12181.

It is an arithmetic number, because the mean of its divisors is an integer number (11879155).

Almost surely, 2^47494693 is an apocalyptic number.

It is an amenable number.

47494693 is a deficient number, since it is larger than the sum of its proper divisors (21927).

47494693 is a wasteful number, since it uses less digits than its factorization.

47494693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21926.

The product of its digits is 653184, while the sum is 46.

The square root of 47494693 is about 6891.6393550446. The cubic root of 47494693 is about 362.1443341500.

The spelling of 47494693 in words is "forty-seven million, four hundred ninety-four thousand, six hundred ninety-three".