47980247 has 4 divisors (see below), whose sum is σ = 54834576. Its totient is φ = 41125920.

The previous prime is 47980237. The next prime is 47980253. The reversal of 47980247 is 74208974.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47980247 - 2⁶ = 47980183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47980237) 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, 3427154 + ... + 3427167.

It is an arithmetic number, because the mean of its divisors is an integer number (13708644).

Almost surely, 2^47980247 is an apocalyptic number.

47980247 is a deficient number, since it is larger than the sum of its proper divisors (6854329).

47980247 is an equidigital number, since it uses as much as digits as its factorization.

47980247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6854328.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 47980247 is about 6926.7775336010. Note that the first 3 decimals coincide. The cubic root of 47980247 is about 363.3742595277.

The spelling of 47980247 in words is "forty-seven million, nine hundred eighty thousand, two hundred forty-seven".