1964495727 has 8 divisors (see below), whose sum is σ = 2910364080. Its totient is φ = 1309663800.

The previous prime is 1964495717. The next prime is 1964495759. The reversal of 1964495727 is 7275944691.

1964495727 is a `hidden beast` number, since 1 + 9 + 64 + 4 + 9 + 572 + 7 = 666.

It is not a de Polignac number, because 1964495727 - 2¹⁶ = 1964430191 is a prime.

It is a super-2 number, since 2×1964495727² = 7718486922802517058, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1964495717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36379524 + ... + 36379577.

It is an arithmetic number, because the mean of its divisors is an integer number (363795510).

Almost surely, 2^1964495727 is an apocalyptic number.

1964495727 is a deficient number, since it is larger than the sum of its proper divisors (945868353).

1964495727 is an equidigital number, since it uses as much as digits as its factorization.

1964495727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72759110 (or 72759104 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 54.

The square root of 1964495727 is about 44322.6322210223. The cubic root of 1964495727 is about 1252.4210628297.

The spelling of 1964495727 in words is "one billion, nine hundred sixty-four million, four hundred ninety-five thousand, seven hundred twenty-seven".