47797521 has 8 divisors (see below), whose sum is σ = 67084320. Its totient is φ = 30187872.

The previous prime is 47797501. The next prime is 47797537. The reversal of 47797521 is 12579774.

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

It is not a de Polignac number, because 47797521 - 2⁶ = 47797457 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47797501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 419220 + ... + 419333.

It is an arithmetic number, because the mean of its divisors is an integer number (8385540).

Almost surely, 2^47797521 is an apocalyptic number.

It is an amenable number.

47797521 is a deficient number, since it is larger than the sum of its proper divisors (19286799).

47797521 is a wasteful number, since it uses less digits than its factorization.

47797521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838575.

The product of its digits is 123480, while the sum is 42.

The square root of 47797521 is about 6913.5751243477. The cubic root of 47797521 is about 362.9123861741.

The spelling of 47797521 in words is "forty-seven million, seven hundred ninety-seven thousand, five hundred twenty-one".