965723601 has 4 divisors (see below), whose sum is σ = 1287631472. Its totient is φ = 643815732.

The previous prime is 965723599. The next prime is 965723657. The reversal of 965723601 is 106327569.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 106327569 = 3 ⋅35442523.

It is not a de Polignac number, because 965723601 - 2¹ = 965723599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 965723601.

It is not an unprimeable number, because it can be changed into a prime (965723201) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 160953931 + ... + 160953936.

It is an arithmetic number, because the mean of its divisors is an integer number (321907868).

Almost surely, 2^965723601 is an apocalyptic number.

It is an amenable number.

965723601 is a deficient number, since it is larger than the sum of its proper divisors (321907871).

965723601 is a wasteful number, since it uses less digits than its factorization.

965723601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321907870.

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 965723601 is about 31076.0937217019. The cubic root of 965723601 is about 988.4414482903.

The spelling of 965723601 in words is "nine hundred sixty-five million, seven hundred twenty-three thousand, six hundred one".