98921738 has 8 divisors (see below), whose sum is σ = 148457988. Its totient is φ = 49435744.

The previous prime is 98921737. The next prime is 98921743. The reversal of 98921738 is 83712989.

It can be written as a sum of positive squares in 2 ways, for example, as 94225849 + 4695889 = 9707^2 + 2167^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 98921692 and 98921701.

It is not an unprimeable number, because it can be changed into a prime (98921731) 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, 7181 + ... + 15792.

Almost surely, 2^98921738 is an apocalyptic number.

98921738 is a deficient number, since it is larger than the sum of its proper divisors (49536250).

98921738 is a wasteful number, since it uses less digits than its factorization.

98921738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25128.

The product of its digits is 217728, while the sum is 47.

The square root of 98921738 is about 9945.9407800368. The cubic root of 98921738 is about 462.4845680753.

The spelling of 98921738 in words is "ninety-eight million, nine hundred twenty-one thousand, seven hundred thirty-eight".