11922457 has 8 divisors (see below), whose sum is σ = 12654792. Its totient is φ = 11193600.

The previous prime is 11922439. The next prime is 11922467. The reversal of 11922457 is 75422911.

It can be written as a sum of positive squares in 4 ways, for example, as 5875776 + 6046681 = 2424^2 + 2459^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11922457 - 2¹¹ = 11920409 is a prime.

It is a super-3 number, since 3×11922457³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11922437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10707 + ... + 11767.

It is an arithmetic number, because the mean of its divisors is an integer number (1581849).

Almost surely, 2^11922457 is an apocalyptic number.

11922457 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

11922457 is a deficient number, since it is larger than the sum of its proper divisors (732335).

11922457 is a wasteful number, since it uses less digits than its factorization.

11922457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739.

The product of its digits is 5040, while the sum is 31.

The square root of 11922457 is about 3452.8911074634. The cubic root of 11922457 is about 228.4486459423.

The spelling of 11922457 in words is "eleven million, nine hundred twenty-two thousand, four hundred fifty-seven".