78727098 has 16 divisors (see below), whose sum is σ = 158588640. Its totient is φ = 26053296.

The previous prime is 78727097. The next prime is 78727111. The reversal of 78727098 is 89072787.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (78727097) 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, 46365 + ... + 48032.

It is an arithmetic number, because the mean of its divisors is an integer number (9911790).

Almost surely, 2^78727098 is an apocalyptic number.

78727098 is an abundant number, since it is smaller than the sum of its proper divisors (79861542).

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

78727098 is a wasteful number, since it uses less digits than its factorization.

78727098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94541.

The product of its (nonzero) digits is 395136, while the sum is 48.

The square root of 78727098 is about 8872.8291993028. The cubic root of 78727098 is about 428.5893887394.

The spelling of 78727098 in words is "seventy-eight million, seven hundred twenty-seven thousand, ninety-eight".