47899814 has 4 divisors (see below), whose sum is σ = 71849724. Its totient is φ = 23949906.

The previous prime is 47899811. The next prime is 47899837. The reversal of 47899814 is 41899874.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41899874 = 2 ⋅20949937.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47899811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11974952 + ... + 11974955.

It is an arithmetic number, because the mean of its divisors is an integer number (17962431).

Almost surely, 2^47899814 is an apocalyptic number.

47899814 is a deficient number, since it is larger than the sum of its proper divisors (23949910).

47899814 is a wasteful number, since it uses less digits than its factorization.

47899814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23949909.

The product of its digits is 580608, while the sum is 50.

The square root of 47899814 is about 6920.9691517879. The cubic root of 47899814 is about 363.1710951642.

The spelling of 47899814 in words is "forty-seven million, eight hundred ninety-nine thousand, eight hundred fourteen".