90694429 has 8 divisors (see below), whose sum is σ = 109106240. Its totient is φ = 73646496.

The previous prime is 90694403. The next prime is 90694433. The reversal of 90694429 is 92449609.

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

It is not a de Polignac number, because 90694429 - 2⁹ = 90693917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90694459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340824 + ... + 341089.

It is an arithmetic number, because the mean of its divisors is an integer number (13638280).

Almost surely, 2^90694429 is an apocalyptic number.

It is an amenable number.

90694429 is a deficient number, since it is larger than the sum of its proper divisors (18411811).

90694429 is a wasteful number, since it uses less digits than its factorization.

90694429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681939.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 90694429 is about 9523.3622739031. The cubic root of 90694429 is about 449.2901219035.

The spelling of 90694429 in words is "ninety million, six hundred ninety-four thousand, four hundred twenty-nine".