90973869 has 8 divisors (see below), whose sum is σ = 138626880. Its totient is φ = 51985056.

The previous prime is 90973849. The next prime is 90973879. The reversal of 90973869 is 96837909.

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

It is not a de Polignac number, because 90973869 - 2⁹ = 90973357 is a prime.

It is a super-2 number, since 2×90973869² = 16552489681658322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90973829) 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, 2166024 + ... + 2166065.

It is an arithmetic number, because the mean of its divisors is an integer number (17328360).

Almost surely, 2^90973869 is an apocalyptic number.

It is an amenable number.

90973869 is a deficient number, since it is larger than the sum of its proper divisors (47653011).

90973869 is a wasteful number, since it uses less digits than its factorization.

90973869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4332099.

The product of its (nonzero) digits is 734832, while the sum is 51.

The square root of 90973869 is about 9538.0222792778. The cubic root of 90973869 is about 449.7510870330.

The spelling of 90973869 in words is "ninety million, nine hundred seventy-three thousand, eight hundred sixty-nine".