977894741 has 2 divisors, whose sum is σ = 977894742. Its totient is φ = 977894740.

The previous prime is 977894711. The next prime is 977894779. The reversal of 977894741 is 147498779.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 932386225 + 45508516 = 30535^2 + 6746^2 .

It is a cyclic number.

It is not a de Polignac number, because 977894741 - 2⁶ = 977894677 is a prime.

It is a super-3 number, since 3×977894741³ (a number of 28 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (977894711) 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, 488947370 + 488947371.

It is an arithmetic number, because the mean of its divisors is an integer number (488947371).

Almost surely, 2^977894741 is an apocalyptic number.

It is an amenable number.

977894741 is a deficient number, since it is larger than the sum of its proper divisors (1).

977894741 is an equidigital number, since it uses as much as digits as its factorization.

977894741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3556224, while the sum is 56.

The square root of 977894741 is about 31271.3085911031. The cubic root of 977894741 is about 992.5766099734.

The spelling of 977894741 in words is "nine hundred seventy-seven million, eight hundred ninety-four thousand, seven hundred forty-one".