90012769 has 8 divisors (see below), whose sum is σ = 112223808. Its totient is φ = 70139760.

The previous prime is 90012763. The next prime is 90012821. The reversal of 90012769 is 96721009.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90012769 - 2⁷ = 90012641 is a prime.

It is a super-2 number, since 2×90012769² = 16204597166094722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90012763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584422 + ... + 584575.

It is an arithmetic number, because the mean of its divisors is an integer number (14027976).

Almost surely, 2^90012769 is an apocalyptic number.

It is an amenable number.

90012769 is a deficient number, since it is larger than the sum of its proper divisors (22211039).

90012769 is a wasteful number, since it uses less digits than its factorization.

90012769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169015.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 90012769 is about 9487.5059420271. The cubic root of 90012769 is about 448.1616673784.

It can be divided in two parts, 900 and 12769, that multiplied together give a square (11492100 = 3390²).

The spelling of 90012769 in words is "ninety million, twelve thousand, seven hundred sixty-nine".