11457969 has 16 divisors (see below), whose sum is σ = 16185600. Its totient is φ = 7189776.

The previous prime is 11457961. The next prime is 11457973. The reversal of 11457969 is 96975411.

It is not a de Polignac number, because 11457969 - 2³ = 11457961 is a prime.

It is a super-2 number, since 2×11457969² = 262570107209922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11457969.

It is not an unprimeable number, because it can be changed into a prime (11457961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9642 + ... + 10764.

It is an arithmetic number, because the mean of its divisors is an integer number (1011600).

Almost surely, 2^11457969 is an apocalyptic number.

11457969 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11457969 is a deficient number, since it is larger than the sum of its proper divisors (4727631).

11457969 is a wasteful number, since it uses less digits than its factorization.

11457969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324.

The product of its digits is 68040, while the sum is 42.

The square root of 11457969 is about 3384.9621859040. The cubic root of 11457969 is about 225.4425462812.

The spelling of 11457969 in words is "eleven million, four hundred fifty-seven thousand, nine hundred sixty-nine".