60909990 has 32 divisors (see below), whose sum is σ = 146421216. Its totient is φ = 16216320.

The previous prime is 60909967. The next prime is 60910001. The reversal of 60909990 is 9990906.

60909990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23394 + ... + 25866.

It is an arithmetic number, because the mean of its divisors is an integer number (4575663).

Almost surely, 2^60909990 is an apocalyptic number.

60909990 is an abundant number, since it is smaller than the sum of its proper divisors (85511226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

60909990 is a wasteful number, since it uses less digits than its factorization.

60909990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3304.

The product of its (nonzero) digits is 39366, while the sum is 42.

The square root of 60909990 is about 7804.4852488809. The cubic root of 60909990 is about 393.4560032656.

The spelling of 60909990 in words is "sixty million, nine hundred nine thousand, nine hundred ninety".