1964895487 has 2 divisors, whose sum is σ = 1964895488. Its totient is φ = 1964895486.

The previous prime is 1964895473. The next prime is 1964895529. The reversal of 1964895487 is 7845984691.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1964895487 - 2¹⁵ = 1964862719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1964895187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 982447743 + 982447744.

It is an arithmetic number, because the mean of its divisors is an integer number (982447744).

Almost surely, 2^1964895487 is an apocalyptic number.

1964895487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1964895487 is an equidigital number, since it uses as much as digits as its factorization.

1964895487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17418240, while the sum is 61.

The square root of 1964895487 is about 44327.1416515886. The cubic root of 1964895487 is about 1252.5060098011.

The spelling of 1964895487 in words is "one billion, nine hundred sixty-four million, eight hundred ninety-five thousand, four hundred eighty-seven".