90498838 has 4 divisors (see below), whose sum is σ = 135748260. Its totient is φ = 45249418.

The previous prime is 90498833. The next prime is 90498847. The reversal of 90498838 is 83889409.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 90498791 and 90498800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90498833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22624708 + ... + 22624711.

It is an arithmetic number, because the mean of its divisors is an integer number (33937065).

Almost surely, 2^90498838 is an apocalyptic number.

90498838 is a deficient number, since it is larger than the sum of its proper divisors (45249422).

90498838 is a wasteful number, since it uses less digits than its factorization.

90498838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45249421.

The product of its (nonzero) digits is 497664, while the sum is 49.

The square root of 90498838 is about 9513.0877216601. The cubic root of 90498838 is about 448.9669107548.

The spelling of 90498838 in words is "ninety million, four hundred ninety-eight thousand, eight hundred thirty-eight".