11620919 has 2 divisors, whose sum is σ = 11620920. Its totient is φ = 11620918.

The previous prime is 11620901. The next prime is 11620933. The reversal of 11620919 is 91902611.

11620919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (91902611) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11620919 is a prime.

It is a super-2 number, since 2×11620919² = 270091516809122, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11620891 and 11620900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11620969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5810459 + 5810460.

It is an arithmetic number, because the mean of its divisors is an integer number (5810460).

Almost surely, 2^11620919 is an apocalyptic number.

11620919 is a deficient number, since it is larger than the sum of its proper divisors (1).

11620919 is an equidigital number, since it uses as much as digits as its factorization.

11620919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 29.

The square root of 11620919 is about 3408.9469048373. The cubic root of 11620919 is about 226.5062333107.

The spelling of 11620919 in words is "eleven million, six hundred twenty thousand, nine hundred nineteen".