47371391 has 4 divisors (see below), whose sum is σ = 47398632. Its totient is φ = 47344152.

The previous prime is 47371369. The next prime is 47371393. The reversal of 47371391 is 19317374.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19317374 = 2 ⋅9658687.

It is a cyclic number.

It is not a de Polignac number, because 47371391 - 2⁶ = 47371327 is a prime.

It is a Duffinian number.

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47371393) 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, 10820 + ... + 14553.

It is an arithmetic number, because the mean of its divisors is an integer number (11849658).

Almost surely, 2^47371391 is an apocalyptic number.

47371391 is a deficient number, since it is larger than the sum of its proper divisors (27241).

47371391 is a wasteful number, since it uses less digits than its factorization.

47371391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27240.

The product of its digits is 15876, while the sum is 35.

The square root of 47371391 is about 6882.6877744091. The cubic root of 47371391 is about 361.8306723116.

The spelling of 47371391 in words is "forty-seven million, three hundred seventy-one thousand, three hundred ninety-one".