90012869 has 8 divisors (see below), whose sum is σ = 95214912. Its totient is φ = 84918240.

The previous prime is 90012859. The next prime is 90012887. The reversal of 90012869 is 96821009.

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 90012869 - 2⁸ = 90012613 is a prime.

It is a super-2 number, since 2×90012869² = 16204633171222322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90012829) 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, 25127 + ... + 28484.

It is an arithmetic number, because the mean of its divisors is an integer number (11901864).

Almost surely, 2^90012869 is an apocalyptic number.

It is an amenable number.

90012869 is a deficient number, since it is larger than the sum of its proper divisors (5202043).

90012869 is a wasteful number, since it uses less digits than its factorization.

90012869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53707.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 90012869 is about 9487.5112121146. The cubic root of 90012869 is about 448.1618333406.

The spelling of 90012869 in words is "ninety million, twelve thousand, eight hundred sixty-nine".