1487415997 has 2 divisors, whose sum is σ = 1487415998. Its totient is φ = 1487415996.

The previous prime is 1487415989. The next prime is 1487416001. The reversal of 1487415997 is 7995147841.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1466430436 + 20985561 = 38294^2 + 4581^2 .

It is an emirp because it is prime and its reverse (7995147841) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1487415997 - 2³ = 1487415989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1487415907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 743707998 + 743707999.

It is an arithmetic number, because the mean of its divisors is an integer number (743707999).

Almost surely, 2^1487415997 is an apocalyptic number.

It is an amenable number.

1487415997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1487415997 is an equidigital number, since it uses as much as digits as its factorization.

1487415997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2540160, while the sum is 55.

The square root of 1487415997 is about 38567.0325148306. The cubic root of 1487415997 is about 1141.5041182635.

The spelling of 1487415997 in words is "one billion, four hundred eighty-seven million, four hundred fifteen thousand, nine hundred ninety-seven".