47479511 has 4 divisors (see below), whose sum is σ = 47554224. Its totient is φ = 47404800.

The previous prime is 47479493. The next prime is 47479519. The reversal of 47479511 is 11597474.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47479511 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 (47479519) 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, 36395 + ... + 37676.

It is an arithmetic number, because the mean of its divisors is an integer number (11888556).

Almost surely, 2^47479511 is an apocalyptic number.

47479511 is a deficient number, since it is larger than the sum of its proper divisors (74713).

47479511 is an equidigital number, since it uses as much as digits as its factorization.

47479511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74712.

The product of its digits is 35280, while the sum is 38.

The square root of 47479511 is about 6890.5377874299. The cubic root of 47479511 is about 362.1057427421.

The spelling of 47479511 in words is "forty-seven million, four hundred seventy-nine thousand, five hundred eleven".