961723 has 12 divisors (see below), whose sum is σ = 1178760. Its totient is φ = 780192.

The previous prime is 961703. The next prime is 961729. The reversal of 961723 is 327169.

It is not a de Polignac number, because 961723 - 2⁵ = 961691 is a prime.

It is a super-2 number, since 2×961723² = 1849822257458, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 961691 and 961700.

It is not an unprimeable number, because it can be changed into a prime (961729) 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 11 ways as a sum of consecutive naturals, for example, 415 + ... + 1447.

It is an arithmetic number, because the mean of its divisors is an integer number (98230).

2⁹⁶¹⁷²³ is an apocalyptic number.

961723 is a deficient number, since it is larger than the sum of its proper divisors (217037).

961723 is a wasteful number, since it uses less digits than its factorization.

961723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066 (or 1059 counting only the distinct ones).

The product of its digits is 2268, while the sum is 28.

The square root of 961723 is about 980.6747676982. The cubic root of 961723 is about 98.7074655252.

The spelling of 961723 in words is "nine hundred sixty-one thousand, seven hundred twenty-three".