1066379797 has 16 divisors (see below), whose sum is σ = 1297670400. Its totient is φ = 874292496.

The previous prime is 1066379773. The next prime is 1066379801. The reversal of 1066379797 is 7979736601.

It is a happy number.

It is not a de Polignac number, because 1066379797 - 2¹⁹ = 1065855509 is a prime.

It is a super-2 number, since 2×1066379797² = 2274331742899522418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066379737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59698 + ... + 75475.

It is an arithmetic number, because the mean of its divisors is an integer number (81104400).

Almost surely, 2^1066379797 is an apocalyptic number.

It is an amenable number.

1066379797 is a deficient number, since it is larger than the sum of its proper divisors (231290603).

1066379797 is an equidigital number, since it uses as much as digits as its factorization.

1066379797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135217 (or 135203 counting only the distinct ones).

The product of its (nonzero) digits is 3000564, while the sum is 55.

The square root of 1066379797 is about 32655.4711648753. The cubic root of 1066379797 is about 1021.6543054241.

The spelling of 1066379797 in words is "one billion, sixty-six million, three hundred seventy-nine thousand, seven hundred ninety-seven".