90129694 has 8 divisors (see below), whose sum is σ = 135526320. Its totient is φ = 44954256.

The previous prime is 90129671. The next prime is 90129701. The reversal of 90129694 is 49692109.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54274 + ... + 55909.

It is an arithmetic number, because the mean of its divisors is an integer number (16940790).

Almost surely, 2^90129694 is an apocalyptic number.

90129694 is a deficient number, since it is larger than the sum of its proper divisors (45396626).

90129694 is a wasteful number, since it uses less digits than its factorization.

90129694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110594.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 90129694 is about 9493.6659937034. The cubic root of 90129694 is about 448.3556347841.

The spelling of 90129694 in words is "ninety million, one hundred twenty-nine thousand, six hundred ninety-four".