90529615 has 32 divisors (see below), whose sum is σ = 121927680. Its totient is φ = 63974400.

The previous prime is 90529609. The next prime is 90529657. The reversal of 90529615 is 51692509.

It is not a de Polignac number, because 90529615 - 2¹³ = 90521423 is a prime.

It is a super-2 number, since 2×90529615² = 16391222384096450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 378666 + ... + 378904.

It is an arithmetic number, because the mean of its divisors is an integer number (3810240).

Almost surely, 2^90529615 is an apocalyptic number.

90529615 is a deficient number, since it is larger than the sum of its proper divisors (31398065).

90529615 is a wasteful number, since it uses less digits than its factorization.

90529615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423.

The product of its (nonzero) digits is 24300, while the sum is 37.

The square root of 90529615 is about 9514.7051977452. The cubic root of 90529615 is about 449.0178001320.

The spelling of 90529615 in words is "ninety million, five hundred twenty-nine thousand, six hundred fifteen".