1086607661 has 16 divisors (see below), whose sum is σ = 1120392000. Its totient is φ = 1053443328.

The previous prime is 1086607657. The next prime is 1086607703. The reversal of 1086607661 is 1667066801.

It is a cyclic number.

It is not a de Polignac number, because 1086607661 - 2² = 1086607657 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 (1086607651) 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 15 ways as a sum of consecutive naturals, for example, 2326550 + ... + 2327016.

It is an arithmetic number, because the mean of its divisors is an integer number (70024500).

Almost surely, 2^1086607661 is an apocalyptic number.

It is an amenable number.

1086607661 is a deficient number, since it is larger than the sum of its proper divisors (33784339).

1086607661 is a wasteful number, since it uses less digits than its factorization.

1086607661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 1086607661 is about 32963.7325101391. The cubic root of 1086607661 is about 1028.0737117654.

The spelling of 1086607661 in words is "one billion, eighty-six million, six hundred seven thousand, six hundred sixty-one".