11987307 has 6 divisors (see below), whose sum is σ = 17315012. Its totient is φ = 7991532.

The previous prime is 11987299. The next prime is 11987323. The reversal of 11987307 is 70378911.

It is not a de Polignac number, because 11987307 - 2³ = 11987299 is a prime.

It is a super-2 number, since 2×11987307² = 287391058224498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11987377) 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, 665953 + ... + 665970.

Almost surely, 2^11987307 is an apocalyptic number.

11987307 is a deficient number, since it is larger than the sum of its proper divisors (5327705).

11987307 is a wasteful number, since it uses less digits than its factorization.

11987307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331929 (or 1331926 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 36.

The square root of 11987307 is about 3462.2690536699. The cubic root of 11987307 is about 228.8620986002.

The spelling of 11987307 in words is "eleven million, nine hundred eighty-seven thousand, three hundred seven".