11920783 has 4 divisors (see below), whose sum is σ = 13623760. Its totient is φ = 10217808.

The previous prime is 11920759. The next prime is 11920789. The reversal of 11920783 is 38702911.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11920783 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 (11920789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 851478 + ... + 851491.

It is an arithmetic number, because the mean of its divisors is an integer number (3405940).

Almost surely, 2^11920783 is an apocalyptic number.

11920783 is a deficient number, since it is larger than the sum of its proper divisors (1702977).

11920783 is an equidigital number, since it uses as much as digits as its factorization.

11920783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702976.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 11920783 is about 3452.6486933947. The cubic root of 11920783 is about 228.4379534893.

It can be divided in two parts, 11920 and 783, that multiplied together give a triangular number (9333360 = T₄₃₂₀).

The spelling of 11920783 in words is "eleven million, nine hundred twenty thousand, seven hundred eighty-three".