920697629 has 2 divisors, whose sum is σ = 920697630. Its totient is φ = 920697628.

The previous prime is 920697623. The next prime is 920697689. The reversal of 920697629 is 926796029.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 871725625 + 48972004 = 29525^2 + 6998^2 .

It is an emirp because it is prime and its reverse (926796029) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-920697629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (920697623) 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, 460348814 + 460348815.

It is an arithmetic number, because the mean of its divisors is an integer number (460348815).

Almost surely, 2^920697629 is an apocalyptic number.

It is an amenable number.

920697629 is a deficient number, since it is larger than the sum of its proper divisors (1).

920697629 is an equidigital number, since it uses as much as digits as its factorization.

920697629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 734832, while the sum is 50.

The square root of 920697629 is about 30342.9996704347. Note that the first 3 decimals coincide. The cubic root of 920697629 is about 972.8345996755.

The spelling of 920697629 in words is "nine hundred twenty million, six hundred ninety-seven thousand, six hundred twenty-nine".