157872847 has 4 divisors (see below), whose sum is σ = 172224936. Its totient is φ = 143520760.

The previous prime is 157872833. The next prime is 157872877. The reversal of 157872847 is 748278751.

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 157872847 - 2⁷ = 157872719 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157872847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157872817) 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, 7176028 + ... + 7176049.

It is an arithmetic number, because the mean of its divisors is an integer number (43056234).

Almost surely, 2^157872847 is an apocalyptic number.

157872847 is a deficient number, since it is larger than the sum of its proper divisors (14352089).

157872847 is a wasteful number, since it uses less digits than its factorization.

157872847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14352088.

The product of its digits is 878080, while the sum is 49.

The square root of 157872847 is about 12564.7461971979. The cubic root of 157872847 is about 540.4669566297.

The spelling of 157872847 in words is "one hundred fifty-seven million, eight hundred seventy-two thousand, eight hundred forty-seven".