11937487 has 2 divisors, whose sum is σ = 11937488. Its totient is φ = 11937486.

The previous prime is 11937469. The next prime is 11937503. The reversal of 11937487 is 78473911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11937487 - 2²³ = 3548879 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11937427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5968743 + 5968744.

It is an arithmetic number, because the mean of its divisors is an integer number (5968744).

Almost surely, 2^11937487 is an apocalyptic number.

11937487 is a deficient number, since it is larger than the sum of its proper divisors (1).

11937487 is an equidigital number, since it uses as much as digits as its factorization.

11937487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 40.

The square root of 11937487 is about 3455.0668589768. The cubic root of 11937487 is about 228.5446032693.

The spelling of 11937487 in words is "eleven million, nine hundred thirty-seven thousand, four hundred eighty-seven".