47157477 has 8 divisors (see below), whose sum is σ = 62981664. Its totient is φ = 31385808.

The previous prime is 47157463. The next prime is 47157491. The reversal of 47157477 is 77475174.

It is an interprime number because it is at equal distance from previous prime (47157463) and next prime (47157491).

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

It is not a de Polignac number, because 47157477 - 2⁶ = 47157413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47157437) 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, 10983 + ... + 14660.

It is an arithmetic number, because the mean of its divisors is an integer number (7872708).

Almost surely, 2^47157477 is an apocalyptic number.

It is an amenable number.

47157477 is a deficient number, since it is larger than the sum of its proper divisors (15824187).

47157477 is a wasteful number, since it uses less digits than its factorization.

47157477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26259.

The product of its digits is 192080, while the sum is 42.

The square root of 47157477 is about 6867.1301866209. The cubic root of 47157477 is about 361.2852133792.

The spelling of 47157477 in words is "forty-seven million, one hundred fifty-seven thousand, four hundred seventy-seven".