157783928 has 32 divisors (see below), whose sum is σ = 301397760. Its totient is φ = 77420640.

The previous prime is 157783921. The next prime is 157783973. The reversal of 157783928 is 829387751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157783921) 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, 230675 + ... + 231357.

It is an arithmetic number, because the mean of its divisors is an integer number (9418680).

Almost surely, 2^157783928 is an apocalyptic number.

It is an amenable number.

157783928 is a deficient number, since it is larger than the sum of its proper divisors (143613832).

157783928 is a wasteful number, since it uses less digits than its factorization.

157783928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187 (or 1183 counting only the distinct ones).

The product of its digits is 846720, while the sum is 50.

The square root of 157783928 is about 12561.2072668195. The cubic root of 157783928 is about 540.3654681900.

The spelling of 157783928 in words is "one hundred fifty-seven million, seven hundred eighty-three thousand, nine hundred twenty-eight".