47697985 has 8 divisors (see below), whose sum is σ = 57304296. Its totient is φ = 38113920.

The previous prime is 47697983. The next prime is 47698009. The reversal of 47697985 is 58979674.

It can be written as a sum of positive squares in 4 ways, for example, as 418609 + 47279376 = 647^2 + 6876^2 .

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

It is not a de Polignac number, because 47697985 - 2¹ = 47697983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47697983) 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, 406 + ... + 9775.

It is an arithmetic number, because the mean of its divisors is an integer number (7163037).

Almost surely, 2^47697985 is an apocalyptic number.

It is an amenable number.

47697985 is a deficient number, since it is larger than the sum of its proper divisors (9606311).

47697985 is a wasteful number, since it uses less digits than its factorization.

47697985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11123.

The product of its digits is 3810240, while the sum is 55.

The square root of 47697985 is about 6906.3727817140. The cubic root of 47697985 is about 362.6602953386.

The spelling of 47697985 in words is "forty-seven million, six hundred ninety-seven thousand, nine hundred eighty-five".