90681776 has 10 divisors (see below), whose sum is σ = 175695972. Its totient is φ = 45340880.

The previous prime is 90681769. The next prime is 90681779. The reversal of 90681776 is 67718609.

It is not an unprimeable number, because it can be changed into a prime (90681779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2833790 + ... + 2833821.

Almost surely, 2^90681776 is an apocalyptic number.

It is an amenable number.

90681776 is a deficient number, since it is larger than the sum of its proper divisors (85014196).

90681776 is a wasteful number, since it uses less digits than its factorization.

90681776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5667619 (or 5667613 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 90681776 is about 9522.6979370344. The cubic root of 90681776 is about 449.2692270799.

The spelling of 90681776 in words is "ninety million, six hundred eighty-one thousand, seven hundred seventy-six".