946540649 has 4 divisors (see below), whose sum is σ = 946732164. Its totient is φ = 946349136.

The previous prime is 946540627. The next prime is 946540669. The reversal of 946540649 is 946045649.

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 926898025 + 19642624 = 30445^2 + 4432^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-946540649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (946540669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88142 + ... + 98295.

It is an arithmetic number, because the mean of its divisors is an integer number (236683041).

Almost surely, 2^946540649 is an apocalyptic number.

It is an amenable number.

946540649 is a deficient number, since it is larger than the sum of its proper divisors (191515).

946540649 is a wasteful number, since it uses less digits than its factorization.

946540649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191514.

The product of its (nonzero) digits is 933120, while the sum is 47.

The square root of 946540649 is about 30765.9007506688. The cubic root of 946540649 is about 981.8528908156.

The spelling of 946540649 in words is "nine hundred forty-six million, five hundred forty thousand, six hundred forty-nine".