782487985 has 16 divisors (see below), whose sum is σ = 1017346176. Its totient is φ = 575463168.

The previous prime is 782487977. The next prime is 782487989. The reversal of 782487985 is 589784287.

It is a cyclic number.

It is not a de Polignac number, because 782487985 - 2³ = 782487977 is a prime.

It is a super-2 number, since 2×782487985² = 1224574893338720450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (782487989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103389 + ... + 110698.

It is an arithmetic number, because the mean of its divisors is an integer number (63584136).

Almost surely, 2^782487985 is an apocalyptic number.

It is an amenable number.

782487985 is a deficient number, since it is larger than the sum of its proper divisors (234858191).

782487985 is a wasteful number, since it uses less digits than its factorization.

782487985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214152.

The product of its digits is 9031680, while the sum is 58.

The square root of 782487985 is about 27972.9867014590. The cubic root of 782487985 is about 921.4941006676.

The spelling of 782487985 in words is "seven hundred eighty-two million, four hundred eighty-seven thousand, nine hundred eighty-five".