90347090 has 16 divisors (see below), whose sum is σ = 171184320. Its totient is φ = 34236720.

The previous prime is 90347087. The next prime is 90347107. The reversal of 90347090 is 9074309.

It is a happy number.

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

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, 237566 + ... + 237945.

It is an arithmetic number, because the mean of its divisors is an integer number (10699020).

Almost surely, 2^90347090 is an apocalyptic number.

90347090 is a deficient number, since it is larger than the sum of its proper divisors (80837230).

90347090 is a wasteful number, since it uses less digits than its factorization.

90347090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475537.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 90347090 is about 9505.1086264177. The cubic root of 90347090 is about 448.7158285394.

The spelling of 90347090 in words is "ninety million, three hundred forty-seven thousand, ninety".