785432563 has 4 divisors (see below), whose sum is σ = 790135920. Its totient is φ = 780729208.

The previous prime is 785432561. The next prime is 785432567. The reversal of 785432563 is 365234587.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 365234587 = 19 ⋅19222873.

It is a cyclic number.

It is not a de Polignac number, because 785432563 - 2¹ = 785432561 is a prime.

It is a super-2 number, since 2×785432563² = 1233808622041497938, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (785432561) 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, 2351428 + ... + 2351761.

It is an arithmetic number, because the mean of its divisors is an integer number (197533980).

Almost surely, 2^785432563 is an apocalyptic number.

785432563 is a deficient number, since it is larger than the sum of its proper divisors (4703357).

785432563 is a wasteful number, since it uses less digits than its factorization.

785432563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4703356.

The product of its digits is 604800, while the sum is 43.

The square root of 785432563 is about 28025.5698068746. The cubic root of 785432563 is about 922.6485442697.

The spelling of 785432563 in words is "seven hundred eighty-five million, four hundred thirty-two thousand, five hundred sixty-three".