47894837 has 4 divisors (see below), whose sum is σ = 48138156. Its totient is φ = 47651520.

The previous prime is 47894807. The next prime is 47894849. The reversal of 47894837 is 73849874.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40271716 + 7623121 = 6346^2 + 2761^2 .

It is a cyclic number.

It is not a de Polignac number, because 47894837 - 2²⁴ = 31117621 is a prime.

It is a super-2 number, since 2×47894837² = 4587830822513138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47894807) 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, 121364 + ... + 121757.

It is an arithmetic number, because the mean of its divisors is an integer number (12034539).

Almost surely, 2^47894837 is an apocalyptic number.

It is an amenable number.

47894837 is a deficient number, since it is larger than the sum of its proper divisors (243319).

47894837 is a wasteful number, since it uses less digits than its factorization.

47894837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243318.

The product of its digits is 1354752, while the sum is 50.

The square root of 47894837 is about 6920.6095829775. The cubic root of 47894837 is about 363.1585163739.

The spelling of 47894837 in words is "forty-seven million, eight hundred ninety-four thousand, eight hundred thirty-seven".