387070978 has 16 divisors (see below), whose sum is σ = 676071360. Its totient is φ = 162757296.

The previous prime is 387070973. The next prime is 387070987. The reversal of 387070978 is 879070783.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (387070973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260088 + ... + 261571.

It is an arithmetic number, because the mean of its divisors is an integer number (42254460).

Almost surely, 2^387070978 is an apocalyptic number.

387070978 is a deficient number, since it is larger than the sum of its proper divisors (289000382).

387070978 is a wasteful number, since it uses less digits than its factorization.

387070978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521721.

The product of its (nonzero) digits is 592704, while the sum is 49.

The square root of 387070978 is about 19674.1194974515. The cubic root of 387070978 is about 728.7807118405.

The spelling of 387070978 in words is "three hundred eighty-seven million, seventy thousand, nine hundred seventy-eight".