1065986397 has 12 divisors (see below), whose sum is σ = 1759723680. Its totient is φ = 609135048.

The previous prime is 1065986381. The next prime is 1065986419. The reversal of 1065986397 is 7936895601.

1065986397 is a `hidden beast` number, since 10 + 6 + 598 + 6 + 39 + 7 = 666.

It is not a de Polignac number, because 1065986397 - 2⁴ = 1065986381 is a prime.

It is a super-2 number, since 2×1065986397² = 2272653997178083218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1065986797) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8460147 + ... + 8460272.

It is an arithmetic number, because the mean of its divisors is an integer number (146643640).

Almost surely, 2^1065986397 is an apocalyptic number.

It is an amenable number.

1065986397 is a deficient number, since it is larger than the sum of its proper divisors (693737283).

1065986397 is a wasteful number, since it uses less digits than its factorization.

1065986397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16920432 (or 16920429 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 54.

The square root of 1065986397 is about 32649.4471162989. The cubic root of 1065986397 is about 1021.5286565577.

The spelling of 1065986397 in words is "one billion, sixty-five million, nine hundred eighty-six thousand, three hundred ninety-seven".