90694129 has 16 divisors (see below), whose sum is σ = 97136640. Its totient is φ = 84490560.

The previous prime is 90694111. The next prime is 90694159. The reversal of 90694129 is 92149609.

It is not a de Polignac number, because 90694129 - 2⁷ = 90694001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90694091 and 90694100.

It is not an unprimeable number, because it can be changed into a prime (90694159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177927 + ... + 178435.

It is an arithmetic number, because the mean of its divisors is an integer number (6071040).

Almost surely, 2^90694129 is an apocalyptic number.

It is an amenable number.

90694129 is a deficient number, since it is larger than the sum of its proper divisors (6442511).

90694129 is a wasteful number, since it uses less digits than its factorization.

90694129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720.

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

The square root of 90694129 is about 9523.3465231504. The cubic root of 90694129 is about 449.2896265141.

The spelling of 90694129 in words is "ninety million, six hundred ninety-four thousand, one hundred twenty-nine".