60985821 has 8 divisors (see below), whose sum is σ = 87569440. Its totient is φ = 37529712.

The previous prime is 60985777. The next prime is 60985823. The reversal of 60985821 is 12858906.

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

It is not a de Polignac number, because 60985821 - 2⁷ = 60985693 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1563739 = 60985821 / (6 + 0 + 9 + 8 + 5 + 8 + 2 + 1).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 60985821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60985823) 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, 781831 + ... + 781908.

It is an arithmetic number, because the mean of its divisors is an integer number (10946180).

Almost surely, 2^60985821 is an apocalyptic number.

It is an amenable number.

60985821 is a deficient number, since it is larger than the sum of its proper divisors (26583619).

60985821 is a wasteful number, since it uses less digits than its factorization.

60985821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563755.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 60985821 is about 7809.3419056922. The cubic root of 60985821 is about 393.6192156224.

The spelling of 60985821 in words is "sixty million, nine hundred eighty-five thousand, eight hundred twenty-one".