47691393 has 8 divisors (see below), whose sum is σ = 63824256. Its totient is φ = 31676400.

The previous prime is 47691389. The next prime is 47691401. The reversal of 47691393 is 39319674.

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

It is not a de Polignac number, because 47691393 - 2² = 47691389 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47691313) 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, 28518 + ... + 30143.

It is an arithmetic number, because the mean of its divisors is an integer number (7978032).

Almost surely, 2^47691393 is an apocalyptic number.

It is an amenable number.

47691393 is a deficient number, since it is larger than the sum of its proper divisors (16132863).

47691393 is a wasteful number, since it uses less digits than its factorization.

47691393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58935.

The product of its digits is 122472, while the sum is 42.

The square root of 47691393 is about 6905.8955248396. The cubic root of 47691393 is about 362.6435876670.

It can be divided in two parts, 47691 and 393, that added together give a palindrome (48084).

The spelling of 47691393 in words is "forty-seven million, six hundred ninety-one thousand, three hundred ninety-three".