1400881487 has 2 divisors, whose sum is σ = 1400881488. Its totient is φ = 1400881486.

The previous prime is 1400881441. The next prime is 1400881499. The reversal of 1400881487 is 7841880041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1400881487 - 2⁶ = 1400881423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400881187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700440743 + 700440744.

It is an arithmetic number, because the mean of its divisors is an integer number (700440744).

Almost surely, 2^1400881487 is an apocalyptic number.

1400881487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400881487 is an equidigital number, since it uses as much as digits as its factorization.

1400881487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57344, while the sum is 41.

The square root of 1400881487 is about 37428.3513796694. The cubic root of 1400881487 is about 1118.9236808598.

The spelling of 1400881487 in words is "one billion, four hundred million, eight hundred eighty-one thousand, four hundred eighty-seven".