60784138 has 4 divisors (see below), whose sum is σ = 91176210. Its totient is φ = 30392068.

The previous prime is 60784133. The next prime is 60784151. The reversal of 60784138 is 83148706.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83148706 = 2 ⋅41574353.

It can be written as a sum of positive squares in only one way, i.e., 60171049 + 613089 = 7757^2 + 783^2 .

It is a super-2 number, since 2×60784138² = 7389422864806088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 60784097 and 60784106.

It is not an unprimeable number, because it can be changed into a prime (60784133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15196033 + ... + 15196036.

Almost surely, 2^60784138 is an apocalyptic number.

60784138 is a deficient number, since it is larger than the sum of its proper divisors (30392072).

60784138 is a wasteful number, since it uses less digits than its factorization.

60784138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30392071.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 60784138 is about 7796.4182802105. The cubic root of 60784138 is about 393.1848306264.

The spelling of 60784138 in words is "sixty million, seven hundred eighty-four thousand, one hundred thirty-eight".