12392705 has 8 divisors (see below), whose sum is σ = 16015272. Its totient is φ = 9151488.

The previous prime is 12392671. The next prime is 12392713. The reversal of 12392705 is 50729321.

It can be written as a sum of positive squares in 4 ways, for example, as 620944 + 11771761 = 788^2 + 3431^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12392705 - 2¹² = 12388609 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95264 + ... + 95393.

It is an arithmetic number, because the mean of its divisors is an integer number (2001909).

Almost surely, 2^12392705 is an apocalyptic number.

It is an amenable number.

12392705 is a deficient number, since it is larger than the sum of its proper divisors (3622567).

12392705 is a wasteful number, since it uses less digits than its factorization.

12392705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190675.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 12392705 is about 3520.3273995468. The cubic root of 12392705 is about 231.4135069596.

The spelling of 12392705 in words is "twelve million, three hundred ninety-two thousand, seven hundred five".