90964949 has 2 divisors, whose sum is σ = 90964950. Its totient is φ = 90964948.

The previous prime is 90964919. The next prime is 90965053. The reversal of 90964949 is 94946909.

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., 69639025 + 21325924 = 8345^2 + 4618^2 .

It is a cyclic number.

It is not a de Polignac number, because 90964949 - 2¹² = 90960853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90964897 and 90964906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90964919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45482474 + 45482475.

It is an arithmetic number, because the mean of its divisors is an integer number (45482475).

Almost surely, 2^90964949 is an apocalyptic number.

It is an amenable number.

90964949 is a deficient number, since it is larger than the sum of its proper divisors (1).

90964949 is an equidigital number, since it uses as much as digits as its factorization.

90964949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 629856, while the sum is 50.

The square root of 90964949 is about 9537.5546656363. The cubic root of 90964949 is about 449.7363871679.

The spelling of 90964949 in words is "ninety million, nine hundred sixty-four thousand, nine hundred forty-nine".