787042 has 4 divisors (see below), whose sum is σ = 1180566. Its totient is φ = 393520.

The previous prime is 787021. The next prime is 787043. The reversal of 787042 is 240787.

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

It can be written as a sum of positive squares in only one way, i.e., 670761 + 116281 = 819^2 + 341^2 .

It is a d-powerful number, because it can be written as 7² + 8³ + 0 + 7² + 4⁹ + 2¹⁹ .

It is a self number, because there is not a number n which added to its sum of digits gives 787042.

It is not an unprimeable number, because it can be changed into a prime (787043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196759 + ... + 196762.

2⁷⁸⁷⁰⁴² is an apocalyptic number.

787042 is a deficient number, since it is larger than the sum of its proper divisors (393524).

787042 is a wasteful number, since it uses less digits than its factorization.

787042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393523.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 787042 is about 887.1538761681. The cubic root of 787042 is about 92.3278316812.

The spelling of 787042 in words is "seven hundred eighty-seven thousand, forty-two".