1086604997 has 4 divisors (see below), whose sum is σ = 1150522956. Its totient is φ = 1022687040.

The previous prime is 1086604979. The next prime is 1086605021. The reversal of 1086604997 is 7994066801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1003685761 + 82919236 = 31681^2 + 9106^2 .

It is a cyclic number.

It is not a de Polignac number, because 1086604997 - 2⁶ = 1086604933 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 (1086604907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31958954 + ... + 31958987.

It is an arithmetic number, because the mean of its divisors is an integer number (287630739).

Almost surely, 2^1086604997 is an apocalyptic number.

1086604997 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1086604997 is a deficient number, since it is larger than the sum of its proper divisors (63917959).

1086604997 is an equidigital number, since it uses as much as digits as its factorization.

1086604997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63917958.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 1086604997 is about 32963.6921020689. The cubic root of 1086604997 is about 1028.0728716000.

The spelling of 1086604997 in words is "one billion, eighty-six million, six hundred four thousand, nine hundred ninety-seven".