65742870 has 16 divisors (see below), whose sum is σ = 157782960. Its totient is φ = 17531424.

The previous prime is 65742841. The next prime is 65742871. The reversal of 65742870 is 7824756.

65742870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65742871) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1095685 + ... + 1095744.

It is an arithmetic number, because the mean of its divisors is an integer number (9861435).

Almost surely, 2^65742870 is an apocalyptic number.

65742870 is an abundant number, since it is smaller than the sum of its proper divisors (92040090).

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

65742870 is a wasteful number, since it uses less digits than its factorization.

65742870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2191439.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 65742870 is about 8108.1977035590. The cubic root of 65742870 is about 403.5985089213.

The spelling of 65742870 in words is "sixty-five million, seven hundred forty-two thousand, eight hundred seventy".