96440509 has 6 divisors (see below), whose sum is σ = 106004990. Its totient is φ = 87673080.

The previous prime is 96440479. The next prime is 96440521. The reversal of 96440509 is 90504469.

It can be written as a sum of positive squares in only one way, i.e., 87422500 + 9018009 = 9350^2 + 3003^2 .

It is not a de Polignac number, because 96440509 - 2¹³ = 96432317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (96440209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 398394 + ... + 398635.

Almost surely, 2^96440509 is an apocalyptic number.

It is an amenable number.

96440509 is a deficient number, since it is larger than the sum of its proper divisors (9564481).

96440509 is a wasteful number, since it uses less digits than its factorization.

96440509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797051 (or 797040 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 96440509 is about 9820.4128731943. The cubic root of 96440509 is about 458.5849853585.

The spelling of 96440509 in words is "ninety-six million, four hundred forty thousand, five hundred nine".