1712304399 has 16 divisors (see below), whose sum is σ = 2461070304. Its totient is φ = 1052707200.

The previous prime is 1712304383. The next prime is 1712304403. The reversal of 1712304399 is 9934032171.

It is a Cunningham number, because it is equal to 41380²-1.

It is not a de Polignac number, because 1712304399 - 2⁴ = 1712304383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1712304199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20689 + ... + 62069.

It is an arithmetic number, because the mean of its divisors is an integer number (153816894).

Almost surely, 2^1712304399 is an apocalyptic number.

1712304399 is a deficient number, since it is larger than the sum of its proper divisors (748765905).

1712304399 is a wasteful number, since it uses less digits than its factorization.

1712304399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42458.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 1712304399 is about 41379.9999879169. Note that the first 4 decimals coincide. The cubic root of 1712304399 is about 1196.3557028131.

The spelling of 1712304399 in words is "one billion, seven hundred twelve million, three hundred four thousand, three hundred ninety-nine".