611334921 has 32 divisors (see below), whose sum is σ = 844736256. Its totient is φ = 393120000.

The previous prime is 611334907. The next prime is 611334929. The reversal of 611334921 is 129433116.

It is not a de Polignac number, because 611334921 - 2¹¹ = 611332873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (611334929) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3377451 + ... + 3377631.

It is an arithmetic number, because the mean of its divisors is an integer number (26398008).

Almost surely, 2^611334921 is an apocalyptic number.

It is an amenable number.

611334921 is a deficient number, since it is larger than the sum of its proper divisors (233401335).

611334921 is a wasteful number, since it uses less digits than its factorization.

611334921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513.

The product of its digits is 3888, while the sum is 30.

The square root of 611334921 is about 24725.1879871519. The cubic root of 611334921 is about 848.7108120084.

The spelling of 611334921 in words is "six hundred eleven million, three hundred thirty-four thousand, nine hundred twenty-one".