3402447655 has 4 divisors (see below), whose sum is σ = 4082937192. Its totient is φ = 2721958120.

The previous prime is 3402447647. The next prime is 3402447679. The reversal of 3402447655 is 5567442043.

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

It is not a de Polignac number, because 3402447655 - 2³ = 3402447647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340244761 + ... + 340244770.

It is an arithmetic number, because the mean of its divisors is an integer number (1020734298).

Almost surely, 2^3402447655 is an apocalyptic number.

3402447655 is a deficient number, since it is larger than the sum of its proper divisors (680489537).

3402447655 is an equidigital number, since it uses as much as digits as its factorization.

3402447655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680489536.

The product of its (nonzero) digits is 403200, while the sum is 40.

The square root of 3402447655 is about 58330.5036408910. The cubic root of 3402447655 is about 1504.0553454940.

Adding to 3402447655 its reverse (5567442043), we get a palindrome (8969889698).

The spelling of 3402447655 in words is "three billion, four hundred two million, four hundred forty-seven thousand, six hundred fifty-five".