1097616999 has 4 divisors (see below), whose sum is σ = 1463489336. Its totient is φ = 731744664.

The previous prime is 1097616997. The next prime is 1097617007. The reversal of 1097616999 is 9996167901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9996167901 = 3 ⋅3332055967.

It is not a de Polignac number, because 1097616999 - 2¹ = 1097616997 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 (1097616997) 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, 182936164 + ... + 182936169.

It is an arithmetic number, because the mean of its divisors is an integer number (365872334).

Almost surely, 2^1097616999 is an apocalyptic number.

1097616999 is a deficient number, since it is larger than the sum of its proper divisors (365872337).

1097616999 is an equidigital number, since it uses as much as digits as its factorization.

1097616999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365872336.

The product of its (nonzero) digits is 1653372, while the sum is 57.

The square root of 1097616999 is about 33130.3033339570. The cubic root of 1097616999 is about 1031.5341448343.

The spelling of 1097616999 in words is "one billion, ninety-seven million, six hundred sixteen thousand, nine hundred ninety-nine".