11701988 has 12 divisors (see below), whose sum is σ = 20541612. Its totient is φ = 5832960.

The previous prime is 11701979. The next prime is 11702011. The reversal of 11701988 is 88910711.

11701988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6512704 + 5189284 = 2552^2 + 2278^2 .

It is a super-3 number, since 3×11701988³ (a number of 22 digits) contains 333 as substring.

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, 2993 + ... + 5688.

It is an arithmetic number, because the mean of its divisors is an integer number (1711801).

Almost surely, 2^11701988 is an apocalyptic number.

It is an amenable number.

11701988 is a deficient number, since it is larger than the sum of its proper divisors (8839624).

11701988 is a wasteful number, since it uses less digits than its factorization.

11701988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9022 (or 9020 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 35.

The square root of 11701988 is about 3420.8168615113. The cubic root of 11701988 is about 227.0317252715.

The spelling of 11701988 in words is "eleven million, seven hundred one thousand, nine hundred eighty-eight".