47072037 has 4 divisors (see below), whose sum is σ = 62762720. Its totient is φ = 31381356.

The previous prime is 47072009. The next prime is 47072087. The reversal of 47072037 is 73027074.

It is a happy number.

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.

It is not a de Polignac number, because 47072037 - 2⁷ = 47071909 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47071995 and 47072013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47072087) 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, 7845337 + ... + 7845342.

It is an arithmetic number, because the mean of its divisors is an integer number (15690680).

Almost surely, 2^47072037 is an apocalyptic number.

It is an amenable number.

47072037 is a deficient number, since it is larger than the sum of its proper divisors (15690683).

47072037 is a wasteful number, since it uses less digits than its factorization.

47072037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15690682.

The product of its (nonzero) digits is 8232, while the sum is 30.

The square root of 47072037 is about 6860.9064269964. The cubic root of 47072037 is about 361.0668890770.

The spelling of 47072037 in words is "forty-seven million, seventy-two thousand, thirty-seven".