47254391 has 4 divisors (see below), whose sum is σ = 47334672. Its totient is φ = 47174112.

The previous prime is 47254381. The next prime is 47254469. The reversal of 47254391 is 19345274.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47254391 - 2¹⁴ = 47238007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47254381) 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, 39251 + ... + 40436.

It is an arithmetic number, because the mean of its divisors is an integer number (11833668).

Almost surely, 2^47254391 is an apocalyptic number.

47254391 is a deficient number, since it is larger than the sum of its proper divisors (80281).

47254391 is an equidigital number, since it uses as much as digits as its factorization.

47254391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80280.

The product of its digits is 30240, while the sum is 35.

The square root of 47254391 is about 6874.1829332656. The cubic root of 47254391 is about 361.5325381521.

The spelling of 47254391 in words is "forty-seven million, two hundred fifty-four thousand, three hundred ninety-one".