785364489 has 24 divisors (see below), whose sum is σ = 1396204992. Its totient is φ = 414257760.

The previous prime is 785364473. The next prime is 785364493. The reversal of 785364489 is 984463587.

It is not a de Polignac number, because 785364489 - 2⁴ = 785364473 is a prime.

It is a super-2 number, since 2×785364489² = 1233594761164462242, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (785364409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 478647 + ... + 480284.

It is an arithmetic number, because the mean of its divisors is an integer number (58175208).

Almost surely, 2^785364489 is an apocalyptic number.

It is an amenable number.

785364489 is a deficient number, since it is larger than the sum of its proper divisors (610840503).

785364489 is a wasteful number, since it uses less digits than its factorization.

785364489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958957 (or 958954 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 785364489 is about 28024.3552825038. The cubic root of 785364489 is about 922.6218879639.

The spelling of 785364489 in words is "seven hundred eighty-five million, three hundred sixty-four thousand, four hundred eighty-nine".