47437867 has 4 divisors (see below), whose sum is σ = 47495920. Its totient is φ = 47379816.

The previous prime is 47437849. The next prime is 47437877. The reversal of 47437867 is 76873474.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76873474 = 2 ⋅38436737.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47437867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47437847) 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, 27783 + ... + 29440.

It is an arithmetic number, because the mean of its divisors is an integer number (11873980).

Almost surely, 2^47437867 is an apocalyptic number.

47437867 is a deficient number, since it is larger than the sum of its proper divisors (58053).

47437867 is an equidigital number, since it uses as much as digits as its factorization.

47437867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58052.

The product of its digits is 790272, while the sum is 46.

The square root of 47437867 is about 6887.5152994385. The cubic root of 47437867 is about 361.9998448358. Note that the first 3 decimals are identical.

The spelling of 47437867 in words is "forty-seven million, four hundred thirty-seven thousand, eight hundred sixty-seven".