98509403 has 2 divisors, whose sum is σ = 98509404. Its totient is φ = 98509402.

The previous prime is 98509399. The next prime is 98509469. The reversal of 98509403 is 30490589.

It is a weak prime.

It is an emirp because it is prime and its reverse (30490589) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98509403 - 2² = 98509399 is a prime.

It is not a weakly prime, because it can be changed into another prime (98509003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49254701 + 49254702.

It is an arithmetic number, because the mean of its divisors is an integer number (49254702).

Almost surely, 2^98509403 is an apocalyptic number.

98509403 is a deficient number, since it is larger than the sum of its proper divisors (1).

98509403 is an equidigital number, since it uses as much as digits as its factorization.

98509403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 98509403 is about 9925.1903256310. The cubic root of 98509403 is about 461.8410824398.

The spelling of 98509403 in words is "ninety-eight million, five hundred nine thousand, four hundred three".