60698809 has 4 divisors (see below), whose sum is σ = 61142004. Its totient is φ = 60255616.

The previous prime is 60698791. The next prime is 60698821. The reversal of 60698809 is 90889606.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17665209 + 43033600 = 4203^2 + 6560^2 .

It is a cyclic number.

It is not a de Polignac number, because 60698809 - 2¹⁵ = 60666041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (60698839) 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, 221392 + ... + 221665.

It is an arithmetic number, because the mean of its divisors is an integer number (15285501).

Almost surely, 2^60698809 is an apocalyptic number.

It is an amenable number.

60698809 is a deficient number, since it is larger than the sum of its proper divisors (443195).

60698809 is a wasteful number, since it uses less digits than its factorization.

60698809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443194.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 60698809 is about 7790.9440377916. The cubic root of 60698809 is about 393.0007596884. Note that the first 3 decimals are identical.

It can be divided in two parts, 6069 and 8809, that added together give a triangular number (14878 = T₁₇₂).

The spelling of 60698809 in words is "sixty million, six hundred ninety-eight thousand, eight hundred nine".