90704005 has 16 divisors (see below), whose sum is σ = 130942080. Its totient is φ = 58923072.

The previous prime is 90703981. The next prime is 90704051. The reversal of 90704005 is 50040709.

It is a cyclic number.

It is not a de Polignac number, because 90704005 - 2⁹ = 90703493 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67534 + ... + 68863.

It is an arithmetic number, because the mean of its divisors is an integer number (8183880).

Almost surely, 2^90704005 is an apocalyptic number.

90704005 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

90704005 is a deficient number, since it is larger than the sum of its proper divisors (40238075).

90704005 is a wasteful number, since it uses less digits than its factorization.

90704005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136428.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 90704005 is about 9523.8650242430. The cubic root of 90704005 is about 449.3059341603.

The spelling of 90704005 in words is "ninety million, seven hundred four thousand, five".