3405726887 has 4 divisors (see below), whose sum is σ = 3407409096. Its totient is φ = 3404044680.

The previous prime is 3405726881. The next prime is 3405726899. The reversal of 3405726887 is 7886275043.

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

It is a cyclic number.

It is not a de Polignac number, because 3405726887 - 2⁴ = 3405726871 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 (3405726881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 838064 + ... + 842117.

It is an arithmetic number, because the mean of its divisors is an integer number (851852274).

Almost surely, 2^3405726887 is an apocalyptic number.

3405726887 is a deficient number, since it is larger than the sum of its proper divisors (1682209).

3405726887 is a wasteful number, since it uses less digits than its factorization.

3405726887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682208.

The product of its (nonzero) digits is 2257920, while the sum is 50.

The square root of 3405726887 is about 58358.6059377707. The cubic root of 3405726887 is about 1504.5383862591.

The spelling of 3405726887 in words is "three billion, four hundred five million, seven hundred twenty-six thousand, eight hundred eighty-seven".