90953393 has 2 divisors, whose sum is σ = 90953394. Its totient is φ = 90953392.

The previous prime is 90953351. The next prime is 90953407. The reversal of 90953393 is 39335909.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90193009 + 760384 = 9497^2 + 872^2 .

It is a cyclic number.

It is not a de Polignac number, because 90953393 - 2¹⁰ = 90952369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90953393.

It is not a weakly prime, because it can be changed into another prime (90950393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45476696 + 45476697.

It is an arithmetic number, because the mean of its divisors is an integer number (45476697).

Almost surely, 2^90953393 is an apocalyptic number.

It is an amenable number.

90953393 is a deficient number, since it is larger than the sum of its proper divisors (1).

90953393 is an equidigital number, since it uses as much as digits as its factorization.

90953393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98415, while the sum is 41.

The square root of 90953393 is about 9536.9488307320. The cubic root of 90953393 is about 449.7173418329.

The spelling of 90953393 in words is "ninety million, nine hundred fifty-three thousand, three hundred ninety-three".