47948919 has 16 divisors (see below), whose sum is σ = 66355200. Its totient is φ = 30761696.

The previous prime is 47948911. The next prime is 47948939. The reversal of 47948919 is 91984974.

It is a cyclic number.

It is not a de Polignac number, because 47948919 - 2³ = 47948911 is a prime.

It is a super-2 number, since 2×47948919² = 4598197666537122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47948911) 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, 32602 + ... + 34040.

It is an arithmetic number, because the mean of its divisors is an integer number (4147200).

Almost surely, 2^47948919 is an apocalyptic number.

47948919 is a deficient number, since it is larger than the sum of its proper divisors (18406281).

47948919 is a wasteful number, since it uses less digits than its factorization.

47948919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854.

The product of its digits is 653184, while the sum is 51.

The square root of 47948919 is about 6924.5157953463. The cubic root of 47948919 is about 363.2951556740.

The spelling of 47948919 in words is "forty-seven million, nine hundred forty-eight thousand, nine hundred nineteen".