47231477 has 4 divisors (see below), whose sum is σ = 47495520. Its totient is φ = 46967436.

The previous prime is 47231461. The next prime is 47231519. The reversal of 47231477 is 77413274.

It is a happy number.

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 47231477 - 2⁴ = 47231461 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 (47231417) 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, 131753 + ... + 132110.

It is an arithmetic number, because the mean of its divisors is an integer number (11873880).

Almost surely, 2^47231477 is an apocalyptic number.

It is an amenable number.

47231477 is a deficient number, since it is larger than the sum of its proper divisors (264043).

47231477 is a wasteful number, since it uses less digits than its factorization.

47231477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264042.

The product of its digits is 32928, while the sum is 35.

The square root of 47231477 is about 6872.5160603668. The cubic root of 47231477 is about 361.4740921129.

The spelling of 47231477 in words is "forty-seven million, two hundred thirty-one thousand, four hundred seventy-seven".