47111477 has 4 divisors (see below), whose sum is σ = 53841696. Its totient is φ = 40381260.

The previous prime is 47111417. The next prime is 47111489. The reversal of 47111477 is 77411174.

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 47111477 - 2⁸ = 47111221 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 (47111417) 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, 3365099 + ... + 3365112.

It is an arithmetic number, because the mean of its divisors is an integer number (13460424).

Almost surely, 2^47111477 is an apocalyptic number.

It is an amenable number.

47111477 is a deficient number, since it is larger than the sum of its proper divisors (6730219).

47111477 is an equidigital number, since it uses as much as digits as its factorization.

47111477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6730218.

The product of its digits is 5488, while the sum is 32.

The square root of 47111477 is about 6863.7800809758. The cubic root of 47111477 is about 361.1677026644.

The spelling of 47111477 in words is "forty-seven million, one hundred eleven thousand, four hundred seventy-seven".