98690729 has 8 divisors (see below), whose sum is σ = 107320968. Its totient is φ = 90374400.

The previous prime is 98690689. The next prime is 98690749. The reversal of 98690729 is 92709689.

It can be written as a sum of positive squares in 4 ways, for example, as 27541504 + 71149225 = 5248^2 + 8435^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 98690729 - 2¹⁶ = 98625193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98690749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77822 + ... + 79079.

It is an arithmetic number, because the mean of its divisors is an integer number (13415121).

Almost surely, 2^98690729 is an apocalyptic number.

It is an amenable number.

98690729 is a deficient number, since it is larger than the sum of its proper divisors (8630239).

98690729 is a wasteful number, since it uses less digits than its factorization.

98690729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156955.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 98690729 is about 9934.3207618840. The cubic root of 98690729 is about 462.1242786415.

The spelling of 98690729 in words is "ninety-eight million, six hundred ninety thousand, seven hundred twenty-nine".