920655913 has 2 divisors, whose sum is σ = 920655914. Its totient is φ = 920655912.

The previous prime is 920655877. The next prime is 920655917. The reversal of 920655913 is 319556029.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 715937049 + 204718864 = 26757^2 + 14308^2 .

It is a cyclic number.

It is not a de Polignac number, because 920655913 - 2⁹ = 920655401 is a prime.

It is not a weakly prime, because it can be changed into another prime (920655917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460327956 + 460327957.

It is an arithmetic number, because the mean of its divisors is an integer number (460327957).

Almost surely, 2^920655913 is an apocalyptic number.

It is an amenable number.

920655913 is a deficient number, since it is larger than the sum of its proper divisors (1).

920655913 is an equidigital number, since it uses as much as digits as its factorization.

920655913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72900, while the sum is 40.

The square root of 920655913 is about 30342.3122553308. The cubic root of 920655913 is about 972.8199066935.

The spelling of 920655913 in words is "nine hundred twenty million, six hundred fifty-five thousand, nine hundred thirteen".