920088439 has 2 divisors, whose sum is σ = 920088440. Its totient is φ = 920088438.

The previous prime is 920088419. The next prime is 920088469. The reversal of 920088439 is 934880029.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 920088439 - 2²¹ = 917991287 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 920088395 and 920088404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (920088419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460044219 + 460044220.

It is an arithmetic number, because the mean of its divisors is an integer number (460044220).

Almost surely, 2^920088439 is an apocalyptic number.

920088439 is a deficient number, since it is larger than the sum of its proper divisors (1).

920088439 is an equidigital number, since it uses as much as digits as its factorization.

920088439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 920088439 is about 30332.9596149139. The cubic root of 920088439 is about 972.6199899968.

The spelling of 920088439 in words is "nine hundred twenty million, eighty-eight thousand, four hundred thirty-nine".