611887449 has 4 divisors (see below), whose sum is σ = 815849936. Its totient is φ = 407924964.

The previous prime is 611887439. The next prime is 611887453. The reversal of 611887449 is 944788116.

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 not a de Polignac number, because 611887449 - 2⁵ = 611887417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 611887398 and 611887407.

It is not an unprimeable number, because it can be changed into a prime (611887439) 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, 101981239 + ... + 101981244.

It is an arithmetic number, because the mean of its divisors is an integer number (203962484).

Almost surely, 2^611887449 is an apocalyptic number.

It is an amenable number.

611887449 is a deficient number, since it is larger than the sum of its proper divisors (203962487).

611887449 is a wasteful number, since it uses less digits than its factorization.

611887449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203962486.

The product of its digits is 387072, while the sum is 48.

The square root of 611887449 is about 24736.3588468473. The cubic root of 611887449 is about 848.9664249119.

The spelling of 611887449 in words is "six hundred eleven million, eight hundred eighty-seven thousand, four hundred forty-nine".