90383049 has 9 divisors (see below), whose sum is σ = 130594503. Its totient is φ = 60236352.

The previous prime is 90383039. The next prime is 90383081. The reversal of 90383049 is 94038309.

The square root of 90383049 is 9507.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 74701449 + 15681600 = 8643^2 + 3960^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 90383049 - 2⁷ = 90382921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90383039) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 26937 + ... + 30105.

Almost surely, 2^90383049 is an apocalyptic number.

90383049 is the 9507-th square number.

90383049 is the 4754-th centered octagonal number.

It is an amenable number.

90383049 is a deficient number, since it is larger than the sum of its proper divisors (40211454).

90383049 is an frugal number, since it uses more digits than its factorization.

90383049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6344 (or 3172 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The cubic root of 90383049 is about 448.7753516971.

Multiplying 90383049 by its sum of digits (36), we get a square (3253789764 = 57042²).

The spelling of 90383049 in words is "ninety million, three hundred eighty-three thousand, forty-nine".