90934229 has 2 divisors, whose sum is σ = 90934230. Its totient is φ = 90934228.

The previous prime is 90934211. The next prime is 90934279. The reversal of 90934229 is 92243909.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50268100 + 40666129 = 7090^2 + 6377^2 .

It is an emirp because it is prime and its reverse (92243909) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90934229 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 90934192 and 90934201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90934279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45467114 + 45467115.

It is an arithmetic number, because the mean of its divisors is an integer number (45467115).

Almost surely, 2^90934229 is an apocalyptic number.

It is an amenable number.

90934229 is a deficient number, since it is larger than the sum of its proper divisors (1).

90934229 is an equidigital number, since it uses as much as digits as its factorization.

90934229 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 38.

The square root of 90934229 is about 9535.9440539466. The cubic root of 90934229 is about 449.6857542683.

The spelling of 90934229 in words is "ninety million, nine hundred thirty-four thousand, two hundred twenty-nine".