1284213763 has 8 divisors (see below), whose sum is σ = 1531484928. Its totient is φ = 1052895624.

The previous prime is 1284213739. The next prime is 1284213787. The reversal of 1284213763 is 3673124821.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1284213739) and next prime (1284213787).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1284213763 - 2²¹ = 1282116611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1284213793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3988081 + ... + 3988402.

It is an arithmetic number, because the mean of its divisors is an integer number (191435616).

Almost surely, 2^1284213763 is an apocalyptic number.

1284213763 is a deficient number, since it is larger than the sum of its proper divisors (247271165).

1284213763 is an equidigital number, since it uses as much as digits as its factorization.

1284213763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7976513.

The product of its digits is 48384, while the sum is 37.

The square root of 1284213763 is about 35835.9283820023. The cubic root of 1284213763 is about 1086.9571908267.

The spelling of 1284213763 in words is "one billion, two hundred eighty-four million, two hundred thirteen thousand, seven hundred sixty-three".