47398385 has 4 divisors (see below), whose sum is σ = 56878068. Its totient is φ = 37918704.

The previous prime is 47398381. The next prime is 47398399. The reversal of 47398385 is 58389374.

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 11888704 + 35509681 = 3448^2 + 5959^2 .

It is a cyclic number.

It is not a de Polignac number, because 47398385 - 2² = 47398381 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47398381) 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, 4739834 + ... + 4739843.

It is an arithmetic number, because the mean of its divisors is an integer number (14219517).

Almost surely, 2^47398385 is an apocalyptic number.

It is an amenable number.

47398385 is a deficient number, since it is larger than the sum of its proper divisors (9479683).

47398385 is an equidigital number, since it uses as much as digits as its factorization.

47398385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9479682.

The product of its digits is 725760, while the sum is 47.

The square root of 47398385 is about 6884.6485022839. The cubic root of 47398385 is about 361.8993875024.

The spelling of 47398385 in words is "forty-seven million, three hundred ninety-eight thousand, three hundred eighty-five".