961240993 has 2 divisors, whose sum is σ = 961240994. Its totient is φ = 961240992.

The previous prime is 961240981. The next prime is 961240999. The reversal of 961240993 is 399042169.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 703734784 + 257506209 = 26528^2 + 16047^2 .

It is a cyclic number.

It is not a de Polignac number, because 961240993 - 2⁵ = 961240961 is a prime.

It is not a weakly prime, because it can be changed into another prime (961240999) 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 as a sum of consecutive naturals, namely, 480620496 + 480620497.

It is an arithmetic number, because the mean of its divisors is an integer number (480620497).

Almost surely, 2^961240993 is an apocalyptic number.

It is an amenable number.

961240993 is a deficient number, since it is larger than the sum of its proper divisors (1).

961240993 is an equidigital number, since it uses as much as digits as its factorization.

961240993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 961240993 is about 31003.8867402137. The cubic root of 961240993 is about 986.9097233536.

It can be divided in two parts, 9612 and 40993, that added together give a palindrome (50605).

The spelling of 961240993 in words is "nine hundred sixty-one million, two hundred forty thousand, nine hundred ninety-three".