60998789 has 4 divisors (see below), whose sum is σ = 61020300. Its totient is φ = 60977280.

The previous prime is 60998779. The next prime is 60998801. The reversal of 60998789 is 98789906.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98789906 = 2 ⋅49394953.

It can be written as a sum of positive squares in 2 ways, for example, as 31730689 + 29268100 = 5633^2 + 5410^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60998789 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 (60998779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5714 + ... + 12435.

It is an arithmetic number, because the mean of its divisors is an integer number (15255075).

Almost surely, 2^60998789 is an apocalyptic number.

It is an amenable number.

60998789 is a deficient number, since it is larger than the sum of its proper divisors (21511).

60998789 is a wasteful number, since it uses less digits than its factorization.

60998789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21510.

The product of its (nonzero) digits is 1959552, while the sum is 56.

The square root of 60998789 is about 7810.1721491911. The cubic root of 60998789 is about 393.6471133213.

The spelling of 60998789 in words is "sixty million, nine hundred ninety-eight thousand, seven hundred eighty-nine".