90287390 has 16 divisors (see below), whose sum is σ = 162745632. Its totient is φ = 36064224.

The previous prime is 90287389. The next prime is 90287413. The reversal of 90287390 is 9378209.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1607 + ... + 13533.

It is an arithmetic number, because the mean of its divisors is an integer number (10171602).

Almost surely, 2^90287390 is an apocalyptic number.

90287390 is a deficient number, since it is larger than the sum of its proper divisors (72458242).

90287390 is a wasteful number, since it uses less digits than its factorization.

90287390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12691.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 90287390 is about 9501.9676909575. The cubic root of 90287390 is about 448.6169718687.

The spelling of 90287390 in words is "ninety million, two hundred eighty-seven thousand, three hundred ninety".