98978870 has 8 divisors (see below), whose sum is σ = 178161984. Its totient is φ = 39591544.

The previous prime is 98978861. The next prime is 98978881. The reversal of 98978870 is 7887989.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4948934 + ... + 4948953.

It is an arithmetic number, because the mean of its divisors is an integer number (22270248).

Almost surely, 2^98978870 is an apocalyptic number.

98978870 is a deficient number, since it is larger than the sum of its proper divisors (79183114).

98978870 is a wasteful number, since it uses less digits than its factorization.

98978870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9897894.

The product of its (nonzero) digits is 2032128, while the sum is 56.

The square root of 98978870 is about 9948.8124919510. The cubic root of 98978870 is about 462.5735865382.

The spelling of 98978870 in words is "ninety-eight million, nine hundred seventy-eight thousand, eight hundred seventy".