11157764 has 6 divisors (see below), whose sum is σ = 19526094. Its totient is φ = 5578880.

The previous prime is 11157739. The next prime is 11157767. The reversal of 11157764 is 46775111.

It can be written as a sum of positive squares in only one way, i.e., 10240000 + 917764 = 3200^2 + 958^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11157764.

It is not an unprimeable number, because it can be changed into a prime (11157767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1394717 + ... + 1394724.

It is an arithmetic number, because the mean of its divisors is an integer number (3254349).

Almost surely, 2^11157764 is an apocalyptic number.

It is an amenable number.

11157764 is a deficient number, since it is larger than the sum of its proper divisors (8368330).

11157764 is a wasteful number, since it uses less digits than its factorization.

11157764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2789445 (or 2789443 counting only the distinct ones).

The product of its digits is 5880, while the sum is 32.

The square root of 11157764 is about 3340.3239363870. The cubic root of 11157764 is about 223.4561904166.

It can be divided in two parts, 111 and 57764, that added together give a palindrome (57875).

The spelling of 11157764 in words is "eleven million, one hundred fifty-seven thousand, seven hundred sixty-four".