11439457 has 2 divisors, whose sum is σ = 11439458. Its totient is φ = 11439456.

The previous prime is 11439443. The next prime is 11439473. The reversal of 11439457 is 75493411.

11439457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10732176 + 707281 = 3276^2 + 841^2 .

It is a cyclic number.

It is not a de Polignac number, because 11439457 - 2¹⁹ = 10915169 is a prime.

It is a super-2 number, since 2×11439457² = 261722352909698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11439157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5719728 + 5719729.

It is an arithmetic number, because the mean of its divisors is an integer number (5719729).

Almost surely, 2^11439457 is an apocalyptic number.

It is an amenable number.

11439457 is a deficient number, since it is larger than the sum of its proper divisors (1).

11439457 is an equidigital number, since it uses as much as digits as its factorization.

11439457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 34.

The square root of 11439457 is about 3382.2266334473. The cubic root of 11439457 is about 225.3210691966.

The spelling of 11439457 in words is "eleven million, four hundred thirty-nine thousand, four hundred fifty-seven".