157827647 has 4 divisors (see below), whose sum is σ = 157875576. Its totient is φ = 157779720.

The previous prime is 157827641. The next prime is 157827667. The reversal of 157827647 is 746728751.

It is a happy number.

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 157827647 - 2²⁰ = 156779071 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 (157827641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18629 + ... + 25742.

It is an arithmetic number, because the mean of its divisors is an integer number (39468894).

Almost surely, 2^157827647 is an apocalyptic number.

157827647 is a deficient number, since it is larger than the sum of its proper divisors (47929).

157827647 is an equidigital number, since it uses as much as digits as its factorization.

157827647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47928.

The product of its digits is 658560, while the sum is 47.

The square root of 157827647 is about 12562.9473850685. The cubic root of 157827647 is about 540.4153719975.

The spelling of 157827647 in words is "one hundred fifty-seven million, eight hundred twenty-seven thousand, six hundred forty-seven".