1964287772 has 6 divisors (see below), whose sum is σ = 3437503608. Its totient is φ = 982143884.

The previous prime is 1964287771. The next prime is 1964287781. The reversal of 1964287772 is 2777824691.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1964287771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245535968 + ... + 245535975.

It is an arithmetic number, because the mean of its divisors is an integer number (572917268).

Almost surely, 2^1964287772 is an apocalyptic number.

It is an amenable number.

1964287772 is a deficient number, since it is larger than the sum of its proper divisors (1473215836).

1964287772 is a wasteful number, since it uses less digits than its factorization.

1964287772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491071947 (or 491071945 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 53.

The square root of 1964287772 is about 44320.2862355378. The cubic root of 1964287772 is about 1252.3768688908.

The spelling of 1964287772 in words is "one billion, nine hundred sixty-four million, two hundred eighty-seven thousand, seven hundred seventy-two".