1487860447 has 2 divisors, whose sum is σ = 1487860448. Its totient is φ = 1487860446.

The previous prime is 1487860433. The next prime is 1487860463. The reversal of 1487860447 is 7440687841.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1487860447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1487860447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1487860487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 743930223 + 743930224.

It is an arithmetic number, because the mean of its divisors is an integer number (743930224).

Almost surely, 2^1487860447 is an apocalyptic number.

1487860447 is a deficient number, since it is larger than the sum of its proper divisors (1).

1487860447 is an equidigital number, since it uses as much as digits as its factorization.

1487860447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1204224, while the sum is 49.

The square root of 1487860447 is about 38572.7941300601. The cubic root of 1487860447 is about 1141.6178033349.

The spelling of 1487860447 in words is "one billion, four hundred eighty-seven million, eight hundred sixty thousand, four hundred forty-seven".