11661407 has 2 divisors, whose sum is σ = 11661408. Its totient is φ = 11661406.

The previous prime is 11661379. The next prime is 11661449. The reversal of 11661407 is 70416611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11661407 - 2⁸ = 11661151 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 (11661467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5830703 + 5830704.

It is an arithmetic number, because the mean of its divisors is an integer number (5830704).

Almost surely, 2^11661407 is an apocalyptic number.

11661407 is a deficient number, since it is larger than the sum of its proper divisors (1).

11661407 is an equidigital number, since it uses as much as digits as its factorization.

11661407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 11661407 is about 3414.8802321604. The cubic root of 11661407 is about 226.7689823072.

The spelling of 11661407 in words is "eleven million, six hundred sixty-one thousand, four hundred seven".