1390463663 has 8 divisors (see below), whose sum is σ = 1449360432. Its totient is φ = 1332688896.

The previous prime is 1390463653. The next prime is 1390463671. The reversal of 1390463663 is 3663640931.

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 1390463663 - 2⁴ = 1390463647 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1390463663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390463653) 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, 277970 + ... + 282927.

It is an arithmetic number, because the mean of its divisors is an integer number (181170054).

Almost surely, 2^1390463663 is an apocalyptic number.

1390463663 is a deficient number, since it is larger than the sum of its proper divisors (58896769).

1390463663 is an equidigital number, since it uses as much as digits as its factorization.

1390463663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561001.

The product of its (nonzero) digits is 209952, while the sum is 41.

The square root of 1390463663 is about 37288.9214512836. The cubic root of 1390463663 is about 1116.1431064691.

The spelling of 1390463663 in words is "one billion, three hundred ninety million, four hundred sixty-three thousand, six hundred sixty-three".