999994465 has 4 divisors (see below), whose sum is σ = 1199993364. Its totient is φ = 799995568.

The previous prime is 999994439. The next prime is 999994487. The reversal of 999994465 is 564499999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 564499999 = 7 ⋅80642857.

It can be written as a sum of positive squares in 2 ways, for example, as 390497121 + 609497344 = 19761^2 + 24688^2 .

It is a cyclic number.

It is not a de Polignac number, because 999994465 - 2⁵ = 999994433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 999994397 and 999994406.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99999442 + ... + 99999451.

It is an arithmetic number, because the mean of its divisors is an integer number (299998341).

Almost surely, 2^999994465 is an apocalyptic number.

It is an amenable number.

999994465 is a deficient number, since it is larger than the sum of its proper divisors (199998899).

999994465 is a wasteful number, since it uses less digits than its factorization.

999994465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199998898.

The product of its digits is 28343520, while the sum is 64.

The square root of 999994465 is about 31622.6890855284. The cubic root of 999994465 is about 999.9981549966.

The spelling of 999994465 in words is "nine hundred ninety-nine million, nine hundred ninety-four thousand, four hundred sixty-five".