1992743877 has 8 divisors (see below), whose sum is σ = 2657420416. Its totient is φ = 1328281632.

The previous prime is 1992743861. The next prime is 1992743947. The reversal of 1992743877 is 7783472991.

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

It is not a de Polignac number, because 1992743877 - 2⁴ = 1992743861 is a prime.

It is a super-2 number, since 2×1992743877² = 7942056318641982258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992743827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30448 + ... + 70089.

It is an arithmetic number, because the mean of its divisors is an integer number (332177552).

Almost surely, 2^1992743877 is an apocalyptic number.

It is an amenable number.

1992743877 is a deficient number, since it is larger than the sum of its proper divisors (664676539).

1992743877 is a wasteful number, since it uses less digits than its factorization.

1992743877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107147.

The product of its digits is 5334336, while the sum is 57.

The square root of 1992743877 is about 44640.1599123480. The cubic root of 1992743877 is about 1258.3955131396.

The spelling of 1992743877 in words is "one billion, nine hundred ninety-two million, seven hundred forty-three thousand, eight hundred seventy-seven".