90300069 has 32 divisors (see below), whose sum is σ = 137491200. Its totient is φ = 58553280.

The previous prime is 90300053. The next prime is 90300071. The reversal of 90300069 is 96000309.

It is not a de Polignac number, because 90300069 - 2⁴ = 90300053 is a prime.

It is a super-2 number, since 2×90300069² = 16308204922809522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90300029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 179272 + ... + 179774.

It is an arithmetic number, because the mean of its divisors is an integer number (4296600).

Almost surely, 2^90300069 is an apocalyptic number.

It is an amenable number.

90300069 is a deficient number, since it is larger than the sum of its proper divisors (47191131).

90300069 is a wasteful number, since it uses less digits than its factorization.

90300069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 90300069 is about 9502.6348451364. The cubic root of 90300069 is about 448.6379705498.

The spelling of 90300069 in words is "ninety million, three hundred thousand, sixty-nine".