1764882961 has 4 divisors (see below), whose sum is σ = 1765299312. Its totient is φ = 1764466612.

The previous prime is 1764882901. The next prime is 1764882971. The reversal of 1764882961 is 1692884671.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1692884671 = 659 ⋅2568869.

It is a cyclic number.

It is not a de Polignac number, because 1764882961 - 2¹¹ = 1764880913 is a prime.

It is a super-2 number, since 2×1764882961² = 6229623732056255042, 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 = 1764882899 and 1764882908.

It is not an unprimeable number, because it can be changed into a prime (1764882901) 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, 201751 + ... + 210316.

It is an arithmetic number, because the mean of its divisors is an integer number (441324828).

Almost surely, 2^1764882961 is an apocalyptic number.

It is an amenable number.

1764882961 is a deficient number, since it is larger than the sum of its proper divisors (416351).

1764882961 is an equidigital number, since it uses as much as digits as its factorization.

1764882961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416350.

The product of its digits is 1161216, while the sum is 52.

The square root of 1764882961 is about 42010.5101254436. The cubic root of 1764882961 is about 1208.4776887397.

The spelling of 1764882961 in words is "one billion, seven hundred sixty-four million, eight hundred eighty-two thousand, nine hundred sixty-one".