98070581 has 4 divisors (see below), whose sum is σ = 112080672. Its totient is φ = 84060492.

The previous prime is 98070563. The next prime is 98070593. The reversal of 98070581 is 18507089.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 98070581 - 2⁶ = 98070517 is a prime.

It is a super-2 number, since 2×98070581² = 19235677715355122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98070481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7005035 + ... + 7005048.

It is an arithmetic number, because the mean of its divisors is an integer number (28020168).

Almost surely, 2^98070581 is an apocalyptic number.

It is an amenable number.

98070581 is a deficient number, since it is larger than the sum of its proper divisors (14010091).

98070581 is a wasteful number, since it uses less digits than its factorization.

98070581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14010090.

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 98070581 is about 9903.0591738109. The cubic root of 98070581 is about 461.1542860472.

The spelling of 98070581 in words is "ninety-eight million, seventy thousand, five hundred eighty-one".