287457948 has 72 divisors (see below), whose sum is σ = 739266528. Its totient is φ = 94169088.

The previous prime is 287457941. The next prime is 287457991. The reversal of 287457948 is 849754782.

It is a happy number.

287457948 is a `hidden beast` number, since 28 + 7 + 4 + 579 + 48 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 287457894 and 287457903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287457941) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 918240 + ... + 918552.

Almost surely, 2^287457948 is an apocalyptic number.

It is an amenable number.

287457948 is an abundant number, since it is smaller than the sum of its proper divisors (451808580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

287457948 is a wasteful number, since it uses less digits than its factorization.

287457948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683 (or 678 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The square root of 287457948 is about 16954.5848666371. The cubic root of 287457948 is about 659.9708802579.

The spelling of 287457948 in words is "two hundred eighty-seven million, four hundred fifty-seven thousand, nine hundred forty-eight".