90767636 has 12 divisors (see below), whose sum is σ = 167203680. Its totient is φ = 42995160.

The previous prime is 90767609. The next prime is 90767639. The reversal of 90767636 is 63676709.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90767639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 597080 + ... + 597231.

It is an arithmetic number, because the mean of its divisors is an integer number (13933640).

Almost surely, 2^90767636 is an apocalyptic number.

It is an amenable number.

90767636 is a deficient number, since it is larger than the sum of its proper divisors (76436044).

90767636 is a wasteful number, since it uses less digits than its factorization.

90767636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194334 (or 1194332 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 44.

The square root of 90767636 is about 9527.2050466021. The cubic root of 90767636 is about 449.4109758397.

The spelling of 90767636 in words is "ninety million, seven hundred sixty-seven thousand, six hundred thirty-six".