47897319 has 8 divisors (see below), whose sum is σ = 65068272. Its totient is φ = 31328960.

The previous prime is 47897287. The next prime is 47897323. The reversal of 47897319 is 91379874.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47897319 - 2⁵ = 47897287 is a prime.

It is a super-2 number, since 2×47897319² = 4588306334775522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47897329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150462 + ... + 150779.

It is an arithmetic number, because the mean of its divisors is an integer number (8133534).

Almost surely, 2^47897319 is an apocalyptic number.

47897319 is a deficient number, since it is larger than the sum of its proper divisors (17170953).

47897319 is a wasteful number, since it uses less digits than its factorization.

47897319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301297.

The product of its digits is 381024, while the sum is 48.

The square root of 47897319 is about 6920.7889001183. The cubic root of 47897319 is about 363.1647894500.

The spelling of 47897319 in words is "forty-seven million, eight hundred ninety-seven thousand, three hundred nineteen".