47934637 has 4 divisors (see below), whose sum is σ = 49049440. Its totient is φ = 46819836.

The previous prime is 47934619. The next prime is 47934661. The reversal of 47934637 is 73643974.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73643974 = 2 ⋅36821987.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47934637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 1114759 = 47934637 / (4 + 7 + 9 + 3 + 4 + 6 + 3 + 7).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47934593 and 47934602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47934437) 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, 557337 + ... + 557422.

It is an arithmetic number, because the mean of its divisors is an integer number (12262360).

Almost surely, 2^47934637 is an apocalyptic number.

It is an amenable number.

47934637 is a deficient number, since it is larger than the sum of its proper divisors (1114803).

47934637 is a wasteful number, since it uses less digits than its factorization.

47934637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114802.

The product of its digits is 381024, while the sum is 43.

The square root of 47934637 is about 6923.4844550992. The cubic root of 47934637 is about 363.2590818913.

The spelling of 47934637 in words is "forty-seven million, nine hundred thirty-four thousand, six hundred thirty-seven".