947098877 has 2 divisors, whose sum is σ = 947098878. Its totient is φ = 947098876.

The previous prime is 947098829. The next prime is 947098897. The reversal of 947098877 is 778890749.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 943042681 + 4056196 = 30709^2 + 2014^2 .

It is a cyclic number.

It is not a de Polignac number, because 947098877 - 2⁶ = 947098813 is a prime.

It is a super-2 number, since 2×947098877² = 1793992565629322258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (947098897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473549438 + 473549439.

It is an arithmetic number, because the mean of its divisors is an integer number (473549439).

Almost surely, 2^947098877 is an apocalyptic number.

It is an amenable number.

947098877 is a deficient number, since it is larger than the sum of its proper divisors (1).

947098877 is an equidigital number, since it uses as much as digits as its factorization.

947098877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7112448, while the sum is 59.

The square root of 947098877 is about 30774.9716003118. The cubic root of 947098877 is about 982.0458707520.

The spelling of 947098877 in words is "nine hundred forty-seven million, ninety-eight thousand, eight hundred seventy-seven".