11930919 has 64 divisors (see below), whose sum is σ = 22256640. Its totient is φ = 5483520.

The previous prime is 11930873. The next prime is 11930927. The reversal of 11930919 is 91903911.

11930919 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11930919 - 2⁸ = 11930663 is a prime.

It is a super-2 number, since 2×11930919² = 284693656369122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 11930919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11930969) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 87019 + ... + 87155.

It is an arithmetic number, because the mean of its divisors is an integer number (347760).

Almost surely, 2^11930919 is an apocalyptic number.

11930919 is a deficient number, since it is larger than the sum of its proper divisors (10325721).

11930919 is a wasteful number, since it uses less digits than its factorization.

11930919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200.

The product of its (nonzero) digits is 2187, while the sum is 33.

The square root of 11930919 is about 3454.1162400823. The cubic root of 11930919 is about 228.5026805336.

It can be divided in two parts, 11 and 930919, that added together give a triangular number (930930 = T₁₃₆₄).

The spelling of 11930919 in words is "eleven million, nine hundred thirty thousand, nine hundred nineteen".