964409 has 4 divisors (see below), whose sum is σ = 966516. Its totient is φ = 962304.

The previous prime is 964373. The next prime is 964417. The reversal of 964409 is 904469.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 904469 = 71 ⋅12739.

It can be written as a sum of positive squares in 2 ways, for example, as 570025 + 394384 = 755^2 + 628^2 .

It is a cyclic number.

It is not a de Polignac number, because 964409 - 2⁸ = 964153 is a prime.

It is a Duffinian number.

It is a plaindrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (964499) 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 3 ways as a sum of consecutive naturals, for example, 44 + ... + 1389.

It is an arithmetic number, because the mean of its divisors is an integer number (241629).

2⁹⁶⁴⁴⁰⁹ is an apocalyptic number.

It is an amenable number.

964409 is a deficient number, since it is larger than the sum of its proper divisors (2107).

964409 is a wasteful number, since it uses less digits than its factorization.

964409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2106.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 964409 is about 982.0432780687. The cubic root of 964409 is about 98.7992735991.

The spelling of 964409 in words is "nine hundred sixty-four thousand, four hundred nine".