11920877 has 4 divisors (see below), whose sum is σ = 12439200. Its totient is φ = 11402556.

The previous prime is 11920871. The next prime is 11920897. The reversal of 11920877 is 77802911.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77802911 = 29 ⋅2682859.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11920877 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 (11920871) 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, 259127 + ... + 259172.

It is an arithmetic number, because the mean of its divisors is an integer number (3109800).

Almost surely, 2^11920877 is an apocalyptic number.

It is an amenable number.

11920877 is a deficient number, since it is larger than the sum of its proper divisors (518323).

11920877 is an equidigital number, since it uses as much as digits as its factorization.

11920877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518322.

The product of its (nonzero) digits is 7056, while the sum is 35.

The square root of 11920877 is about 3452.6623061052. The cubic root of 11920877 is about 228.4385539284.

The spelling of 11920877 in words is "eleven million, nine hundred twenty thousand, eight hundred seventy-seven".