47393317 has 4 divisors (see below), whose sum is σ = 49453920. Its totient is φ = 45332716.

The previous prime is 47393261. The next prime is 47393323. The reversal of 47393317 is 71339374.

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.

It is a cyclic number.

It is not a de Polignac number, because 47393317 - 2¹¹ = 47391269 is a prime.

It is a super-2 number, since 2×47393317² = 4492252992524978, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47393347) 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, 1030267 + ... + 1030312.

It is an arithmetic number, because the mean of its divisors is an integer number (12363480).

Almost surely, 2^47393317 is an apocalyptic number.

It is an amenable number.

47393317 is a deficient number, since it is larger than the sum of its proper divisors (2060603).

47393317 is a wasteful number, since it uses less digits than its factorization.

47393317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2060602.

The product of its digits is 47628, while the sum is 37.

The square root of 47393317 is about 6884.2804271761. The cubic root of 47393317 is about 361.8864885293.

The spelling of 47393317 in words is "forty-seven million, three hundred ninety-three thousand, three hundred seventeen".