90789286 has 16 divisors (see below), whose sum is σ = 157095936. Its totient is φ = 38545416.

The previous prime is 90789269. The next prime is 90789287. The reversal of 90789286 is 68298709.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90789287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28806 + ... + 31801.

It is an arithmetic number, because the mean of its divisors is an integer number (9818496).

Almost surely, 2^90789286 is an apocalyptic number.

90789286 is a deficient number, since it is larger than the sum of its proper divisors (66306650).

90789286 is a wasteful number, since it uses less digits than its factorization.

90789286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60723.

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 90789286 is about 9528.3411987607. The cubic root of 90789286 is about 449.4467043385.

The spelling of 90789286 in words is "ninety million, seven hundred eighty-nine thousand, two hundred eighty-six".