1066890737 has 8 divisors (see below), whose sum is σ = 1164646080. Its totient is φ = 969262960.

The previous prime is 1066890701. The next prime is 1066890739. The reversal of 1066890737 is 7370986601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1066890737 is a prime.

It is a super-2 number, since 2×1066890737² = 2276511689392806338, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1066890691 and 1066890700.

It is not an unprimeable number, because it can be changed into a prime (1066890739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13958 + ... + 48255.

It is an arithmetic number, because the mean of its divisors is an integer number (145580760).

Almost surely, 2^1066890737 is an apocalyptic number.

It is an amenable number.

1066890737 is a deficient number, since it is larger than the sum of its proper divisors (97755343).

1066890737 is a wasteful number, since it uses less digits than its factorization.

1066890737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63783.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 1066890737 is about 32663.2934193722. The cubic root of 1066890737 is about 1021.8174495198.

The spelling of 1066890737 in words is "one billion, sixty-six million, eight hundred ninety thousand, seven hundred thirty-seven".