291472427 has 8 divisors (see below), whose sum is σ = 298161216. Its totient is φ = 284804032.

The previous prime is 291472411. The next prime is 291472451. The reversal of 291472427 is 724274192.

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 291472427 - 2⁴ = 291472411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (291472477) 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, 25943 + ... + 35439.

It is an arithmetic number, because the mean of its divisors is an integer number (37270152).

Almost surely, 2^291472427 is an apocalyptic number.

291472427 is a deficient number, since it is larger than the sum of its proper divisors (6688789).

291472427 is an equidigital number, since it uses as much as digits as its factorization.

291472427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10197.

The product of its digits is 56448, while the sum is 38.

The square root of 291472427 is about 17072.5635743435. The cubic root of 291472427 is about 663.0289513386.

The spelling of 291472427 in words is "two hundred ninety-one million, four hundred seventy-two thousand, four hundred twenty-seven".