1065923977 has 4 divisors (see below), whose sum is σ = 1069772356. Its totient is φ = 1062075600.

The previous prime is 1065923941. The next prime is 1065923981. The reversal of 1065923977 is 7793295601.

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 569347321 + 496576656 = 23861^2 + 22284^2 .

It is a cyclic number.

It is not a de Polignac number, because 1065923977 - 2¹⁵ = 1065891209 is a prime.

It is a super-2 number, since 2×1065923977² = 2272387849486993058, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1065923977.

It is not an unprimeable number, because it can be changed into a prime (1065923917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1923774 + ... + 1924327.

It is an arithmetic number, because the mean of its divisors is an integer number (267443089).

Almost surely, 2^1065923977 is an apocalyptic number.

It is an amenable number.

1065923977 is a deficient number, since it is larger than the sum of its proper divisors (3848379).

1065923977 is an equidigital number, since it uses as much as digits as its factorization.

1065923977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3848378.

The product of its (nonzero) digits is 714420, while the sum is 49.

The square root of 1065923977 is about 32648.4911902526. The cubic root of 1065923977 is about 1021.5087172590.

The spelling of 1065923977 in words is "one billion, sixty-five million, nine hundred twenty-three thousand, nine hundred seventy-seven".