47872091 has 8 divisors (see below), whose sum is σ = 50350464. Its totient is φ = 45452160.

The previous prime is 47872067. The next prime is 47872093. The reversal of 47872091 is 19027874.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47872091 - 2¹⁴ = 47855707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47872093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12926 + ... + 16211.

It is an arithmetic number, because the mean of its divisors is an integer number (6293808).

Almost surely, 2^47872091 is an apocalyptic number.

47872091 is a deficient number, since it is larger than the sum of its proper divisors (2478373).

47872091 is a wasteful number, since it uses less digits than its factorization.

47872091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29221.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 47872091 is about 6918.9660354709. The cubic root of 47872091 is about 363.1010174023.

The spelling of 47872091 in words is "forty-seven million, eight hundred seventy-two thousand, ninety-one".