90677609 has 16 divisors (see below), whose sum is σ = 107303616. Its totient is φ = 75686400.

The previous prime is 90677603. The next prime is 90677611.

90677609 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 90677609 - 2⁴ = 90677593 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 90677609.

It is not an unprimeable number, because it can be changed into a prime (90677603) 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, 1754 + ... + 13580.

It is an arithmetic number, because the mean of its divisors is an integer number (6706476).

Almost surely, 2^90677609 is an apocalyptic number.

It is an amenable number.

90677609 is a deficient number, since it is larger than the sum of its proper divisors (16626007).

90677609 is a wasteful number, since it uses less digits than its factorization.

90677609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11896.

The product of its (nonzero) digits is 142884, while the sum is 44.

The square root of 90677609 is about 9522.4791414841. The cubic root of 90677609 is about 449.2623453828.

The spelling of 90677609 in words is "ninety million, six hundred seventy-seven thousand, six hundred nine".