98457709 has 12 divisors (see below), whose sum is σ = 114729600. Its totient is φ = 84247128.

The previous prime is 98457707. The next prime is 98457719. The reversal of 98457709 is 90775489.

It is a happy number.

It is not a de Polignac number, because 98457709 - 2¹ = 98457707 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98457707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34852 + ... + 37570.

It is an arithmetic number, because the mean of its divisors is an integer number (9560800).

Almost surely, 2^98457709 is an apocalyptic number.

It is an amenable number.

98457709 is a deficient number, since it is larger than the sum of its proper divisors (16271891).

98457709 is a wasteful number, since it uses less digits than its factorization.

98457709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3472 (or 3465 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 49.

The square root of 98457709 is about 9922.5858020982. The cubic root of 98457709 is about 461.7602827411.

The spelling of 98457709 in words is "ninety-eight million, four hundred fifty-seven thousand, seven hundred nine".