60899721 has 8 divisors (see below), whose sum is σ = 81255264. Its totient is φ = 40572000.

The previous prime is 60899701. The next prime is 60899737. The reversal of 60899721 is 12799806.

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

It is not a de Polignac number, because 60899721 - 2¹⁹ = 60375433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (60899701) 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, 1155 + ... + 11096.

It is an arithmetic number, because the mean of its divisors is an integer number (10156908).

Almost surely, 2^60899721 is an apocalyptic number.

It is an amenable number.

60899721 is a deficient number, since it is larger than the sum of its proper divisors (20355543).

60899721 is a wasteful number, since it uses less digits than its factorization.

60899721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13911.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 60899721 is about 7803.8273302271. The cubic root of 60899721 is about 393.4338907092.

The spelling of 60899721 in words is "sixty million, eight hundred ninety-nine thousand, seven hundred twenty-one".