1073215387 has 8 divisors (see below), whose sum is σ = 1076834304. Its totient is φ = 1069603368.

The previous prime is 1073215379. The next prime is 1073215411. The reversal of 1073215387 is 7835123701.

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

It is a cyclic number.

It is not a de Polignac number, because 1073215387 - 2³ = 1073215379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1073215327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 644518 + ... + 646180.

It is an arithmetic number, because the mean of its divisors is an integer number (134604288).

Almost surely, 2^1073215387 is an apocalyptic number.

1073215387 is a deficient number, since it is larger than the sum of its proper divisors (3618917).

1073215387 is a wasteful number, since it uses less digits than its factorization.

1073215387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3449.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 1073215387 is about 32759.9662240363. The cubic root of 1073215387 is about 1023.8326228276.

The spelling of 1073215387 in words is "one billion, seventy-three million, two hundred fifteen thousand, three hundred eighty-seven".