157827947 has 12 divisors (see below), whose sum is σ = 165956856. Its totient is φ = 150057600.

The previous prime is 157827941. The next prime is 157827979. The reversal of 157827947 is 749728751.

It is a happy number.

It is not a de Polignac number, because 157827947 - 2¹⁰ = 157826923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 157827895 and 157827904.

It is not an unprimeable number, because it can be changed into a prime (157827941) 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 11 ways as a sum of consecutive naturals, for example, 54947 + ... + 57747.

It is an arithmetic number, because the mean of its divisors is an integer number (13829738).

Almost surely, 2^157827947 is an apocalyptic number.

157827947 is a deficient number, since it is larger than the sum of its proper divisors (8128909).

157827947 is an equidigital number, since it uses as much as digits as its factorization.

157827947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2926 (or 2897 counting only the distinct ones).

The product of its digits is 987840, while the sum is 50.

The square root of 157827947 is about 12562.9593249361. The cubic root of 157827947 is about 540.4157144059.

The spelling of 157827947 in words is "one hundred fifty-seven million, eight hundred twenty-seven thousand, nine hundred forty-seven".