47813577 has 16 divisors (see below), whose sum is σ = 73507200. Its totient is φ = 27078912.

The previous prime is 47813551. The next prime is 47813581. The reversal of 47813577 is 77531874.

It is a happy number.

It is not a de Polignac number, because 47813577 - 2⁷ = 47813449 is a prime.

It is a super-2 number, since 2×47813577² = 4572276291069858, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47813587) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7702 + ... + 12447.

It is an arithmetic number, because the mean of its divisors is an integer number (4594200).

Almost surely, 2^47813577 is an apocalyptic number.

It is an amenable number.

47813577 is a deficient number, since it is larger than the sum of its proper divisors (25693623).

47813577 is a wasteful number, since it uses less digits than its factorization.

47813577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20272.

The product of its digits is 164640, while the sum is 42.

The square root of 47813577 is about 6914.7362205655. The cubic root of 47813577 is about 362.9530177718.

The spelling of 47813577 in words is "forty-seven million, eight hundred thirteen thousand, five hundred seventy-seven".