90214844 has 6 divisors (see below), whose sum is σ = 157875984. Its totient is φ = 45107420.

The previous prime is 90214841. The next prime is 90214847. The reversal of 90214844 is 44841209.

It is an interprime number because it is at equal distance from previous prime (90214841) and next prime (90214847).

It is a self number, because there is not a number n which added to its sum of digits gives 90214844.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90214841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11276852 + ... + 11276859.

It is an arithmetic number, because the mean of its divisors is an integer number (26312664).

Almost surely, 2^90214844 is an apocalyptic number.

It is an amenable number.

90214844 is a deficient number, since it is larger than the sum of its proper divisors (67661140).

90214844 is a wasteful number, since it uses less digits than its factorization.

90214844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22553715 (or 22553713 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 90214844 is about 9498.1495039823. The cubic root of 90214844 is about 448.4967849578.

The spelling of 90214844 in words is "ninety million, two hundred fourteen thousand, eight hundred forty-four".