920039089 has 2 divisors, whose sum is σ = 920039090. Its totient is φ = 920039088.

The previous prime is 920039063. The next prime is 920039161. The reversal of 920039089 is 980930029.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 748952689 + 171086400 = 27367^2 + 13080^2 .

It is an emirp because it is prime and its reverse (980930029) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-920039089 is a prime.

It is not a weakly prime, because it can be changed into another prime (920039009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460019544 + 460019545.

It is an arithmetic number, because the mean of its divisors is an integer number (460019545).

Almost surely, 2^920039089 is an apocalyptic number.

It is an amenable number.

920039089 is a deficient number, since it is larger than the sum of its proper divisors (1).

920039089 is an equidigital number, since it uses as much as digits as its factorization.

920039089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 920039089 is about 30332.1461324450. The cubic root of 920039089 is about 972.6026004892.

The spelling of 920039089 in words is "nine hundred twenty million, thirty-nine thousand, eighty-nine".