287225629 has 4 divisors (see below), whose sum is σ = 292093920. Its totient is φ = 282357340.

The previous prime is 287225621. The next prime is 287225647. The reversal of 287225629 is 926522782.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 287225629 - 2³ = 287225621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287225621) 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, 2434057 + ... + 2434174.

It is an arithmetic number, because the mean of its divisors is an integer number (73023480).

Almost surely, 2^287225629 is an apocalyptic number.

It is an amenable number.

287225629 is a deficient number, since it is larger than the sum of its proper divisors (4868291).

287225629 is an equidigital number, since it uses as much as digits as its factorization.

287225629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4868290.

The product of its digits is 241920, while the sum is 43.

The square root of 287225629 is about 16947.7322671796. The cubic root of 287225629 is about 659.7930396391.

The spelling of 287225629 in words is "two hundred eighty-seven million, two hundred twenty-five thousand, six hundred twenty-nine".