263428847 has 8 divisors (see below), whose sum is σ = 287518032. Its totient is φ = 239363200.

The previous prime is 263428831. The next prime is 263428849. The reversal of 263428847 is 748824362.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 263428847 - 2⁴ = 263428831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 263428798 and 263428807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263428849) 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, 24263 + ... + 33399.

It is an arithmetic number, because the mean of its divisors is an integer number (35939754).

Almost surely, 2^263428847 is an apocalyptic number.

263428847 is a deficient number, since it is larger than the sum of its proper divisors (24089185).

263428847 is a wasteful number, since it uses less digits than its factorization.

263428847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11769.

The product of its digits is 516096, while the sum is 44.

The square root of 263428847 is about 16230.4912741420. The cubic root of 263428847 is about 641.0439075163.

The spelling of 263428847 in words is "two hundred sixty-three million, four hundred twenty-eight thousand, eight hundred forty-seven".