961748077 has 2 divisors, whose sum is σ = 961748078. Its totient is φ = 961748076.

The previous prime is 961748069. The next prime is 961748087. The reversal of 961748077 is 770847169.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 832380201 + 129367876 = 28851^2 + 11374^2 .

It is a cyclic number.

It is not a de Polignac number, because 961748077 - 2³ = 961748069 is a prime.

It is a super-2 number, since 2×961748077² = 1849918727226395858, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 961748077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (961748027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480874038 + 480874039.

It is an arithmetic number, because the mean of its divisors is an integer number (480874039).

Almost surely, 2^961748077 is an apocalyptic number.

It is an amenable number.

961748077 is a deficient number, since it is larger than the sum of its proper divisors (1).

961748077 is an equidigital number, since it uses as much as digits as its factorization.

961748077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 592704, while the sum is 49.

The square root of 961748077 is about 31012.0634108729. The cubic root of 961748077 is about 987.0832345263.

The spelling of 961748077 in words is "nine hundred sixty-one million, seven hundred forty-eight thousand, seventy-seven".