90351309 has 16 divisors (see below), whose sum is σ = 124287680. Its totient is φ = 58354560.

The previous prime is 90351307. The next prime is 90351319. The reversal of 90351309 is 90315309.

It is not a de Polignac number, because 90351309 - 2¹ = 90351307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90351301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8577 + ... + 15945.

It is an arithmetic number, because the mean of its divisors is an integer number (7767980).

Almost surely, 2^90351309 is an apocalyptic number.

It is an amenable number.

90351309 is a deficient number, since it is larger than the sum of its proper divisors (33936371).

90351309 is a wasteful number, since it uses less digits than its factorization.

90351309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7500.

The product of its (nonzero) digits is 3645, while the sum is 30.

The square root of 90351309 is about 9505.3305571137. The cubic root of 90351309 is about 448.7228130942.

The spelling of 90351309 in words is "ninety million, three hundred fifty-one thousand, three hundred nine".