10604509 has 4 divisors (see below), whose sum is σ = 10611900. Its totient is φ = 10597120.

The previous prime is 10604467. The next prime is 10604519. The reversal of 10604509 is 90540601.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 90540601 = 431 ⋅210071.

It can be written as a sum of positive squares in 2 ways, for example, as 8139609 + 2464900 = 2853^2 + 1570^2 .

It is a cyclic number.

It is not a de Polignac number, because 10604509 - 2¹⁵ = 10571741 is a prime.

It is a super-2 number, since 2×10604509² = 224911222262162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10604519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 772 + ... + 4669.

It is an arithmetic number, because the mean of its divisors is an integer number (2652975).

Almost surely, 2^10604509 is an apocalyptic number.

It is an amenable number.

10604509 is a deficient number, since it is larger than the sum of its proper divisors (7391).

10604509 is an equidigital number, since it uses as much as digits as its factorization.

10604509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7390.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 10604509 is about 3256.4565097664. The cubic root of 10604509 is about 219.7000664828.

The spelling of 10604509 in words is "ten million, six hundred four thousand, five hundred nine".