11971516 has 6 divisors (see below), whose sum is σ = 20950160. Its totient is φ = 5985756.

The previous prime is 11971499. The next prime is 11971517. The reversal of 11971516 is 61517911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11971517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1496436 + ... + 1496443.

Almost surely, 2^11971516 is an apocalyptic number.

It is an amenable number.

11971516 is a deficient number, since it is larger than the sum of its proper divisors (8978644).

11971516 is a wasteful number, since it uses less digits than its factorization.

11971516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992883 (or 2992881 counting only the distinct ones).

The product of its digits is 1890, while the sum is 31.

The square root of 11971516 is about 3459.9878612504. The cubic root of 11971516 is about 228.7615603263.

The spelling of 11971516 in words is "eleven million, nine hundred seventy-one thousand, five hundred sixteen".