47746399 has 4 divisors (see below), whose sum is σ = 48555720. Its totient is φ = 46937080.

The previous prime is 47746397. The next prime is 47746409. The reversal of 47746399 is 99364774.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99364774 = 2 ⋅49682387.

It is a cyclic number.

It is not a de Polignac number, because 47746399 - 2¹ = 47746397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47746397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404572 + ... + 404689.

It is an arithmetic number, because the mean of its divisors is an integer number (12138930).

Almost surely, 2^47746399 is an apocalyptic number.

47746399 is a deficient number, since it is larger than the sum of its proper divisors (809321).

47746399 is an equidigital number, since it uses as much as digits as its factorization.

47746399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809320.

The product of its digits is 1143072, while the sum is 49.

The square root of 47746399 is about 6909.8769164146. The cubic root of 47746399 is about 362.7829552959.

The spelling of 47746399 in words is "forty-seven million, seven hundred forty-six thousand, three hundred ninety-nine".