64827970 has 64 divisors (see below), whose sum is σ = 129330432. Its totient is φ = 23296000.

The previous prime is 64827923. The next prime is 64828013. The reversal of 64827970 is 7972846.

64827970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 31 ways as a sum of consecutive naturals, for example, 494805 + ... + 494935.

It is an arithmetic number, because the mean of its divisors is an integer number (2020788).

Almost surely, 2^64827970 is an apocalyptic number.

64827970 is a deficient number, since it is larger than the sum of its proper divisors (64502462).

64827970 is a wasteful number, since it uses less digits than its factorization.

64827970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 64827970 is about 8051.5818321619. The cubic root of 64827970 is about 401.7175519822.

The spelling of 64827970 in words is "sixty-four million, eight hundred twenty-seven thousand, nine hundred seventy".