68098493 has 4 divisors (see below), whose sum is σ = 68134368. Its totient is φ = 68062620.

The previous prime is 68098477. The next prime is 68098501. The reversal of 68098493 is 39489086.

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 68098493 - 2⁴ = 68098477 is a prime.

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 (68098993) 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, 14921 + ... + 18942.

It is an arithmetic number, because the mean of its divisors is an integer number (17033592).

Almost surely, 2^68098493 is an apocalyptic number.

It is an amenable number.

68098493 is a deficient number, since it is larger than the sum of its proper divisors (35875).

68098493 is a wasteful number, since it uses less digits than its factorization.

68098493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35874.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 68098493 is about 8252.1811056229. The cubic root of 68098493 is about 408.3624810328.

The spelling of 68098493 in words is "sixty-eight million, ninety-eight thousand, four hundred ninety-three".