11990719 has 6 divisors (see below), whose sum is σ = 12984216. Its totient is φ = 11068200.

The previous prime is 11990689. The next prime is 11990723. The reversal of 11990719 is 91709911.

It is not a de Polignac number, because 11990719 - 2¹¹ = 11988671 is a prime.

It is a super-2 number, since 2×11990719² = 287554684273922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11990749) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35307 + ... + 35644.

It is an arithmetic number, because the mean of its divisors is an integer number (2164036).

Almost surely, 2^11990719 is an apocalyptic number.

11990719 is a deficient number, since it is larger than the sum of its proper divisors (993497).

11990719 is an equidigital number, since it uses as much as digits as its factorization.

11990719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70977 (or 70964 counting only the distinct ones).

The product of its (nonzero) digits is 5103, while the sum is 37.

The square root of 11990719 is about 3462.7617590588. The cubic root of 11990719 is about 228.8838105495.

The spelling of 11990719 in words is "eleven million, nine hundred ninety thousand, seven hundred nineteen".