1965723764 has 24 divisors (see below), whose sum is σ = 3559320576. Its totient is φ = 948924000.

The previous prime is 1965723761. The next prime is 1965723797. The reversal of 1965723764 is 4673275691.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1965723761) 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, 35054 + ... + 71834.

It is an arithmetic number, because the mean of its divisors is an integer number (148305024).

Almost surely, 2^1965723764 is an apocalyptic number.

It is an amenable number.

1965723764 is a deficient number, since it is larger than the sum of its proper divisors (1593596812).

1965723764 is a wasteful number, since it uses less digits than its factorization.

1965723764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37247 (or 37245 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 50.

The square root of 1965723764 is about 44336.4834419691. The cubic root of 1965723764 is about 1252.6819778005.

The spelling of 1965723764 in words is "one billion, nine hundred sixty-five million, seven hundred twenty-three thousand, seven hundred sixty-four".