47097517 has 4 divisors (see below), whose sum is σ = 47895840. Its totient is φ = 46299196.

The previous prime is 47097503. The next prime is 47097527. The reversal of 47097517 is 71579074.

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 47097517 - 2¹¹ = 47095469 is a prime.

It is a super-2 number, since 2×47097517² = 4436352215130578, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47097517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47097527) 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, 399073 + ... + 399190.

It is an arithmetic number, because the mean of its divisors is an integer number (11973960).

Almost surely, 2^47097517 is an apocalyptic number.

It is an amenable number.

47097517 is a deficient number, since it is larger than the sum of its proper divisors (798323).

47097517 is an equidigital number, since it uses as much as digits as its factorization.

47097517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798322.

The product of its (nonzero) digits is 61740, while the sum is 40.

The square root of 47097517 is about 6862.7630732818. The cubic root of 47097517 is about 361.1320255886.

The spelling of 47097517 in words is "forty-seven million, ninety-seven thousand, five hundred seventeen".