90684077 has 16 divisors (see below), whose sum is σ = 102246144. Its totient is φ = 79704000.

The previous prime is 90684071. The next prime is 90684079. The reversal of 90684077 is 77048609.

It is a cyclic number.

It is not a de Polignac number, because 90684077 - 2²² = 86489773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90684071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73052 + ... + 74282.

It is an arithmetic number, because the mean of its divisors is an integer number (6390384).

Almost surely, 2^90684077 is an apocalyptic number.

It is an amenable number.

90684077 is a deficient number, since it is larger than the sum of its proper divisors (11562067).

90684077 is a wasteful number, since it uses less digits than its factorization.

90684077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 90684077 is about 9522.8187528693. The cubic root of 90684077 is about 449.2730270339.

The spelling of 90684077 in words is "ninety million, six hundred eighty-four thousand, seventy-seven".