1992194807 has 8 divisors (see below), whose sum is σ = 2002471296. Its totient is φ = 1981930752.

The previous prime is 1992194761. The next prime is 1992194839. The reversal of 1992194807 is 7084912991.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1992194807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992194857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 617663 + ... + 620879.

It is an arithmetic number, because the mean of its divisors is an integer number (250308912).

Almost surely, 2^1992194807 is an apocalyptic number.

1992194807 is a deficient number, since it is larger than the sum of its proper divisors (10276489).

1992194807 is a wasteful number, since it uses less digits than its factorization.

1992194807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6217.

The product of its (nonzero) digits is 326592, while the sum is 50.

The square root of 1992194807 is about 44634.0095330903. The cubic root of 1992194807 is about 1258.2799253309.

The spelling of 1992194807 in words is "one billion, nine hundred ninety-two million, one hundred ninety-four thousand, eight hundred seven".