81048498 has 16 divisors (see below), whose sum is σ = 162228960. Its totient is φ = 26994176.

The previous prime is 81048497. The next prime is 81048551. The reversal of 81048498 is 89484018.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (81048497) 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, 3661 + ... + 13247.

It is an arithmetic number, because the mean of its divisors is an integer number (10139310).

Almost surely, 2^81048498 is an apocalyptic number.

81048498 is an abundant number, since it is smaller than the sum of its proper divisors (81180462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

81048498 is a wasteful number, since it uses less digits than its factorization.

81048498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11001.

The product of its (nonzero) digits is 73728, while the sum is 42.

The square root of 81048498 is about 9002.6939301522. The cubic root of 81048498 is about 432.7612072211.

The spelling of 81048498 in words is "eighty-one million, forty-eight thousand, four hundred ninety-eight".