1487566849 has 2 divisors, whose sum is σ = 1487566850. Its totient is φ = 1487566848.

The previous prime is 1487566841. The next prime is 1487566859. The reversal of 1487566849 is 9486657841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1178686224 + 308880625 = 34332^2 + 17575^2 .

It is a cyclic number.

It is not a de Polignac number, because 1487566849 - 2³ = 1487566841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1487566793 and 1487566802.

It is not a weakly prime, because it can be changed into another prime (1487566841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 743783424 + 743783425.

It is an arithmetic number, because the mean of its divisors is an integer number (743783425).

Almost surely, 2^1487566849 is an apocalyptic number.

It is an amenable number.

1487566849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1487566849 is an equidigital number, since it uses as much as digits as its factorization.

1487566849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11612160, while the sum is 58.

The square root of 1487566849 is about 38568.9881770316. The cubic root of 1487566849 is about 1141.5427069656.

The spelling of 1487566849 in words is "one billion, four hundred eighty-seven million, five hundred sixty-six thousand, eight hundred forty-nine".