3423257287 has 4 divisors (see below), whose sum is σ = 3427756416. Its totient is φ = 3418758160.

The previous prime is 3423257281. The next prime is 3423257311. The reversal of 3423257287 is 7827523243.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3423257287 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 (3423257281) 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, 2248423 + ... + 2249944.

It is an arithmetic number, because the mean of its divisors is an integer number (856939104).

Almost surely, 2^3423257287 is an apocalyptic number.

3423257287 is a deficient number, since it is larger than the sum of its proper divisors (4499129).

3423257287 is an equidigital number, since it uses as much as digits as its factorization.

3423257287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4499128.

The product of its digits is 564480, while the sum is 43.

The square root of 3423257287 is about 58508.6086571882. The cubic root of 3423257287 is about 1507.1154215180.

It can be divided in two parts, 34232 and 57287, that added together give a palindrome (91519).

The spelling of 3423257287 in words is "three billion, four hundred twenty-three million, two hundred fifty-seven thousand, two hundred eighty-seven".