90929369 has 2 divisors, whose sum is σ = 90929370. Its totient is φ = 90929368.

The previous prime is 90929353. The next prime is 90929393. The reversal of 90929369 is 96392909.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89208025 + 1721344 = 9445^2 + 1312^2 .

It is a cyclic number.

It is not a de Polignac number, because 90929369 - 2⁴ = 90929353 is a prime.

It is a super-2 number, since 2×90929369² = 16536300293476322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (90929309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45464684 + 45464685.

It is an arithmetic number, because the mean of its divisors is an integer number (45464685).

Almost surely, 2^90929369 is an apocalyptic number.

It is an amenable number.

90929369 is a deficient number, since it is larger than the sum of its proper divisors (1).

90929369 is an equidigital number, since it uses as much as digits as its factorization.

90929369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 236196, while the sum is 47.

The square root of 90929369 is about 9535.6892252212. The cubic root of 90929369 is about 449.6777429407.

The spelling of 90929369 in words is "ninety million, nine hundred twenty-nine thousand, three hundred sixty-nine".