60670781 has 8 divisors (see below), whose sum is σ = 64024800. Its totient is φ = 57332880.

The previous prime is 60670777. The next prime is 60670789. The reversal of 60670781 is 18707606.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 60670781 - 2² = 60670777 is a prime.

It is a super-2 number, since 2×60670781² = 7361887334299922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60670789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4151 + ... + 11771.

It is an arithmetic number, because the mean of its divisors is an integer number (8003100).

Almost surely, 2^60670781 is an apocalyptic number.

It is an amenable number.

60670781 is a deficient number, since it is larger than the sum of its proper divisors (3354019).

60670781 is a wasteful number, since it uses less digits than its factorization.

60670781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8059.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 60670781 is about 7789.1450750387. The cubic root of 60670781 is about 392.9402603072.

The spelling of 60670781 in words is "sixty million, six hundred seventy thousand, seven hundred eighty-one".