47813697 has 18 divisors (see below), whose sum is σ = 69823026. Its totient is φ = 31528800.

The previous prime is 47813693. The next prime is 47813713. The reversal of 47813697 is 79631874.

It can be written as a sum of positive squares in only one way, i.e., 34680321 + 13133376 = 5889^2 + 3624^2 .

It is not a de Polignac number, because 47813697 - 2² = 47813693 is a prime.

It is a super-2 number, since 2×47813697² = 4572299241615618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47813693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 205093 + ... + 205325.

It is an arithmetic number, because the mean of its divisors is an integer number (3879057).

Almost surely, 2^47813697 is an apocalyptic number.

It is an amenable number.

47813697 is a deficient number, since it is larger than the sum of its proper divisors (22009329).

47813697 is a wasteful number, since it uses less digits than its factorization.

47813697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541 (or 387 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 47813697 is about 6914.7448976806. The cubic root of 47813697 is about 362.9533214117.

The spelling of 47813697 in words is "forty-seven million, eight hundred thirteen thousand, six hundred ninety-seven".