90869279 has 8 divisors (see below), whose sum is σ = 92534400. Its totient is φ = 89215000.

The previous prime is 90869269. The next prime is 90869287. The reversal of 90869279 is 97296809.

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 90869279 - 2²⁴ = 74092063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90869249) 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, 15272 + ... + 20370.

It is an arithmetic number, because the mean of its divisors is an integer number (11566800).

Almost surely, 2^90869279 is an apocalyptic number.

90869279 is a deficient number, since it is larger than the sum of its proper divisors (1665121).

90869279 is a wasteful number, since it uses less digits than its factorization.

90869279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5421.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 90869279 is about 9532.5379097069. The cubic root of 90869279 is about 449.5786657108.

The spelling of 90869279 in words is "ninety million, eight hundred sixty-nine thousand, two hundred seventy-nine".