999997361 has 6 divisors (see below), whose sum is σ = 1099170786. Its totient is φ = 909088400.

The previous prime is 999997357. The next prime is 999997403. The reversal of 999997361 is 163799999.

It can be written as a sum of positive squares in only one way, i.e., 815445136 + 184552225 = 28556^2 + 13585^2 .

It is not a de Polignac number, because 999997361 - 2² = 999997357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 999997294 and 999997303.

It is not an unprimeable number, because it can be changed into a prime (999997301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4132100 + ... + 4132341.

It is an arithmetic number, because the mean of its divisors is an integer number (183195131).

Almost surely, 2^999997361 is an apocalyptic number.

It is an amenable number.

999997361 is a deficient number, since it is larger than the sum of its proper divisors (99173425).

999997361 is a wasteful number, since it uses less digits than its factorization.

999997361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8264463 (or 8264452 counting only the distinct ones).

The product of its digits is 7440174, while the sum is 62.

The square root of 999997361 is about 31622.7348754025. The cubic root of 999997361 is about 999.9991203326. Note that the first 3 decimals are identical.

The spelling of 999997361 in words is "nine hundred ninety-nine million, nine hundred ninety-seven thousand, three hundred sixty-one".