90239698 has 16 divisors (see below), whose sum is σ = 140025600. Its totient is φ = 43570800.

The previous prime is 90239657. The next prime is 90239701. The reversal of 90239698 is 89693209.

90239698 = T₂₅₂ + T₂₅₃ + ... + T₈₂₂.

It is a happy number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 34128 + ... + 36676.

It is an arithmetic number, because the mean of its divisors is an integer number (8751600).

Almost surely, 2^90239698 is an apocalyptic number.

90239698 is a deficient number, since it is larger than the sum of its proper divisors (49785902).

90239698 is a wasteful number, since it uses less digits than its factorization.

90239698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3153.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 90239698 is about 9499.4577739995. The cubic root of 90239698 is about 448.5379678168.

It can be divided in two parts, 9023 and 9698, that added together give a triangular number (18721 = T₁₉₃).

The spelling of 90239698 in words is "ninety million, two hundred thirty-nine thousand, six hundred ninety-eight".