98661278 has 8 divisors (see below), whose sum is σ = 150418200. Its totient is φ = 48521880.

The previous prime is 98661271. The next prime is 98661289. The reversal of 98661278 is 87216689.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98661271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404228 + ... + 404471.

It is an arithmetic number, because the mean of its divisors is an integer number (18802275).

Almost surely, 2^98661278 is an apocalyptic number.

98661278 is a deficient number, since it is larger than the sum of its proper divisors (51756922).

98661278 is a wasteful number, since it uses less digits than its factorization.

98661278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808762.

The product of its digits is 290304, while the sum is 47.

The square root of 98661278 is about 9932.8383657442. The cubic root of 98661278 is about 462.0783054742.

The spelling of 98661278 in words is "ninety-eight million, six hundred sixty-one thousand, two hundred seventy-eight".