283964645 has 4 divisors (see below), whose sum is σ = 340757580. Its totient is φ = 227171712.

The previous prime is 283964627. The next prime is 283964669. The reversal of 283964645 is 546469382.

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 162766564 + 121198081 = 12758^2 + 11009^2 .

It is a cyclic number.

It is not a de Polignac number, because 283964645 - 2¹² = 283960549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 283964645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28396460 + ... + 28396469.

It is an arithmetic number, because the mean of its divisors is an integer number (85189395).

Almost surely, 2^283964645 is an apocalyptic number.

It is an amenable number.

283964645 is a deficient number, since it is larger than the sum of its proper divisors (56792935).

283964645 is an equidigital number, since it uses as much as digits as its factorization.

283964645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56792934.

The product of its digits is 1244160, while the sum is 47.

The square root of 283964645 is about 16851.2505470662. The cubic root of 283964645 is about 657.2865678022.

The spelling of 283964645 in words is "two hundred eighty-three million, nine hundred sixty-four thousand, six hundred forty-five".