387061978 has 8 divisors (see below), whose sum is σ = 580716468. Its totient is φ = 193489824.

The previous prime is 387061957. The next prime is 387061999. The reversal of 387061978 is 879160783.

It is an interprime number because it is at equal distance from previous prime (387061957) and next prime (387061999).

It can be written as a sum of positive squares in 2 ways, for example, as 383650569 + 3411409 = 19587^2 + 1847^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 7051 + ... + 28702.

Almost surely, 2^387061978 is an apocalyptic number.

387061978 is a deficient number, since it is larger than the sum of its proper divisors (193654490).

387061978 is a wasteful number, since it uses less digits than its factorization.

387061978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41168.

The product of its (nonzero) digits is 508032, while the sum is 49.

The square root of 387061978 is about 19673.8907692403. The cubic root of 387061978 is about 728.7750633698.

The spelling of 387061978 in words is "three hundred eighty-seven million, sixty-one thousand, nine hundred seventy-eight".