98640413 has 4 divisors (see below), whose sum is σ = 98685408. Its totient is φ = 98595420.

The previous prime is 98640403. The next prime is 98640433. The reversal of 98640413 is 31404689.

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 98640413 - 2⁶ = 98640349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98640403) 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, 19031 + ... + 23652.

It is an arithmetic number, because the mean of its divisors is an integer number (24671352).

Almost surely, 2^98640413 is an apocalyptic number.

It is an amenable number.

98640413 is a deficient number, since it is larger than the sum of its proper divisors (44995).

98640413 is a wasteful number, since it uses less digits than its factorization.

98640413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44994.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 98640413 is about 9931.7880061951. The cubic root of 98640413 is about 462.0457295614.

The spelling of 98640413 in words is "ninety-eight million, six hundred forty thousand, four hundred thirteen".