1064776217 has 4 divisors (see below), whose sum is σ = 1066945296. Its totient is φ = 1062607140.

The previous prime is 1064776133. The next prime is 1064776231. The reversal of 1064776217 is 7126774601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1064776217 - 2²² = 1060581913 is a prime.

It is a super-2 number, since 2×1064776217² = 2267496784577662178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1064773217) 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, 1083803 + ... + 1084784.

It is an arithmetic number, because the mean of its divisors is an integer number (266736324).

Almost surely, 2^1064776217 is an apocalyptic number.

It is an amenable number.

1064776217 is a deficient number, since it is larger than the sum of its proper divisors (2169079).

1064776217 is an equidigital number, since it uses as much as digits as its factorization.

1064776217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2169078.

The product of its (nonzero) digits is 98784, while the sum is 41.

The square root of 1064776217 is about 32630.9089208376. The cubic root of 1064776217 is about 1021.1419406586.

The spelling of 1064776217 in words is "one billion, sixty-four million, seven hundred seventy-six thousand, two hundred seventeen".