1964609086 has 16 divisors (see below), whose sum is σ = 3215697408. Its totient is φ = 892759000.

The previous prime is 1964609077. The next prime is 1964609107. The reversal of 1964609086 is 6809064691.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87891 + ... + 107953.

It is an arithmetic number, because the mean of its divisors is an integer number (200981088).

Almost surely, 2^1964609086 is an apocalyptic number.

1964609086 is a deficient number, since it is larger than the sum of its proper divisors (1251088322).

1964609086 is a wasteful number, since it uses less digits than its factorization.

1964609086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24527.

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 1964609086 is about 44323.9109962106. The cubic root of 1964609086 is about 1252.4451522125.

The spelling of 1964609086 in words is "one billion, nine hundred sixty-four million, six hundred nine thousand, eighty-six".