47813617 has 4 divisors (see below), whose sum is σ = 48830976. Its totient is φ = 46796260.

The previous prime is 47813609. The next prime is 47813621. The reversal of 47813617 is 71631874.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71631874 = 2 ⋅35815937.

It is a cyclic number.

It is not a de Polignac number, because 47813617 - 2³ = 47813609 is a prime.

It is a super-2 number, since 2×47813617² = 4572283941245378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47810617) 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, 508609 + ... + 508702.

It is an arithmetic number, because the mean of its divisors is an integer number (12207744).

Almost surely, 2^47813617 is an apocalyptic number.

47813617 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

47813617 is a deficient number, since it is larger than the sum of its proper divisors (1017359).

47813617 is a wasteful number, since it uses less digits than its factorization.

47813617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017358.

The product of its digits is 28224, while the sum is 37.

The square root of 47813617 is about 6914.7391129384. The cubic root of 47813617 is about 362.9531189852.

The spelling of 47813617 in words is "forty-seven million, eight hundred thirteen thousand, six hundred seventeen".