786642 has 16 divisors (see below), whose sum is σ = 1610400. Its totient is φ = 256032.

The previous prime is 786629. The next prime is 786659. The reversal of 786642 is 246687.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1267 + ... + 1782.

It is an arithmetic number, because the mean of its divisors is an integer number (100650).

2⁷⁸⁶⁶⁴² is an apocalyptic number.

786642 is an abundant number, since it is smaller than the sum of its proper divisors (823758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

786642 is a wasteful number, since it uses less digits than its factorization.

786642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3097.

The product of its digits is 16128, while the sum is 33.

The square root of 786642 is about 886.9284074828. The cubic root of 786642 is about 92.3121877084.

The spelling of 786642 in words is "seven hundred eighty-six thousand, six hundred forty-two".