787387 has 4 divisors (see below), whose sum is σ = 790776. Its totient is φ = 784000.

The previous prime is 787361. The next prime is 787427. The reversal of 787387 is 783787.

787387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-787387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (787337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1318 + ... + 1819.

It is an arithmetic number, because the mean of its divisors is an integer number (197694).

2⁷⁸⁷³⁸⁷ is an apocalyptic number.

787387 is a deficient number, since it is larger than the sum of its proper divisors (3389).

787387 is a wasteful number, since it uses less digits than its factorization.

787387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3388.

The product of its digits is 65856, while the sum is 40.

The square root of 787387 is about 887.3482968936. The cubic root of 787387 is about 92.3413203510.

Subtracting from 787387 its reverse (783787), we obtain a square (3600 = 60²).

The spelling of 787387 in words is "seven hundred eighty-seven thousand, three hundred eighty-seven".