11620257 has 32 divisors (see below), whose sum is σ = 17977344. Its totient is φ = 6609600.

The previous prime is 11620253. The next prime is 11620283. The reversal of 11620257 is 75202611.

11620257 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 11620257 - 2² = 11620253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11620253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37698 + ... + 38004.

It is an arithmetic number, because the mean of its divisors is an integer number (561792).

Almost surely, 2^11620257 is an apocalyptic number.

It is an amenable number.

11620257 is a deficient number, since it is larger than the sum of its proper divisors (6357087).

11620257 is a wasteful number, since it uses less digits than its factorization.

11620257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 11620257 is about 3408.8498060196. The cubic root of 11620257 is about 226.5019321600.

Adding to 11620257 its reverse (75202611), we get a palindrome (86822868).

The spelling of 11620257 in words is "eleven million, six hundred twenty thousand, two hundred fifty-seven".