285950247 has 16 divisors (see below), whose sum is σ = 437819520. Its totient is φ = 164181600.

The previous prime is 285950243. The next prime is 285950263. The reversal of 285950247 is 742059582.

It is not a de Polignac number, because 285950247 - 2² = 285950243 is a prime.

It is a super-2 number, since 2×285950247² = 163535087518722018, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 285950199 and 285950208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285950243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227404 + ... + 228657.

It is an arithmetic number, because the mean of its divisors is an integer number (27363720).

Almost surely, 2^285950247 is an apocalyptic number.

285950247 is a deficient number, since it is larger than the sum of its proper divisors (151869273).

285950247 is a wasteful number, since it uses less digits than its factorization.

285950247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456094.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 285950247 is about 16910.0634830269. The cubic root of 285950247 is about 658.8150201968.

The spelling of 285950247 in words is "two hundred eighty-five million, nine hundred fifty thousand, two hundred forty-seven".