47819157 has 16 divisors (see below), whose sum is σ = 65093952. Its totient is φ = 31219200.

The previous prime is 47819137. The next prime is 47819171. The reversal of 47819157 is 75191874.

It is not a de Polignac number, because 47819157 - 2¹¹ = 47817109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47819137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28578 + ... + 30204.

It is an arithmetic number, because the mean of its divisors is an integer number (4068372).

Almost surely, 2^47819157 is an apocalyptic number.

It is an amenable number.

47819157 is a deficient number, since it is larger than the sum of its proper divisors (17274795).

47819157 is a wasteful number, since it uses less digits than its factorization.

47819157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828.

The product of its digits is 70560, while the sum is 42.

The square root of 47819157 is about 6915.1396949013. The cubic root of 47819157 is about 362.9671364886.

The spelling of 47819157 in words is "forty-seven million, eight hundred nineteen thousand, one hundred fifty-seven".