19770964 has 12 divisors (see below), whose sum is σ = 34657504. Its totient is φ = 9868824.

The previous prime is 19770941. The next prime is 19770967. The reversal of 19770964 is 46907791.

It is a happy number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 19770964.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19770967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1272 + ... + 6415.

Almost surely, 2^19770964 is an apocalyptic number.

It is an amenable number.

19770964 is a deficient number, since it is larger than the sum of its proper divisors (14886540).

19770964 is a wasteful number, since it uses less digits than its factorization.

19770964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8334 (or 8332 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 19770964 is about 4446.4552173614. The cubic root of 19770964 is about 270.4016153925.

The spelling of 19770964 in words is "nineteen million, seven hundred seventy thousand, nine hundred sixty-four".