611321764 has 6 divisors (see below), whose sum is σ = 1069813094. Its totient is φ = 305660880.

The previous prime is 611321759. The next prime is 611321797. The reversal of 611321764 is 467123116.

It can be written as a sum of positive squares in only one way, i.e., 511121664 + 100200100 = 22608^2 + 10010^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76415217 + ... + 76415224.

Almost surely, 2^611321764 is an apocalyptic number.

It is an amenable number.

611321764 is a deficient number, since it is larger than the sum of its proper divisors (458491330).

611321764 is a wasteful number, since it uses less digits than its factorization.

611321764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152830445 (or 152830443 counting only the distinct ones).

The product of its digits is 6048, while the sum is 31.

The square root of 611321764 is about 24724.9219210092. The cubic root of 611321764 is about 848.7047233828.

The spelling of 611321764 in words is "six hundred eleven million, three hundred twenty-one thousand, seven hundred sixty-four".