98280639 has 6 divisors (see below), whose sum is σ = 141960936. Its totient is φ = 65520420.

The previous prime is 98280629. The next prime is 98280659. The reversal of 98280639 is 93608289.

98280639 is a `hidden beast` number, since 9 + 8 + 2 + 8 + 0 + 639 = 666.

It is not a de Polignac number, because 98280639 - 2¹⁵ = 98247871 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 98280594 and 98280603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98280629) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5460027 + ... + 5460044.

It is an arithmetic number, because the mean of its divisors is an integer number (23660156).

Almost surely, 2^98280639 is an apocalyptic number.

98280639 is a deficient number, since it is larger than the sum of its proper divisors (43680297).

98280639 is a wasteful number, since it uses less digits than its factorization.

98280639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10920077 (or 10920074 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 98280639 is about 9913.6592134287. The cubic root of 98280639 is about 461.4833010168.

The spelling of 98280639 in words is "ninety-eight million, two hundred eighty thousand, six hundred thirty-nine".