785770947 has 12 divisors (see below), whose sum is σ = 1222310544. Its totient is φ = 483551280.

The previous prime is 785770939. The next prime is 785771009. The reversal of 785770947 is 749077587.

It is not a de Polignac number, because 785770947 - 2³ = 785770939 is a prime.

It is a super-2 number, since 2×785770947² = 1234871962298553618, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 785770893 and 785770902.

It is not an unprimeable number, because it can be changed into a prime (785770927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3357879 + ... + 3358112.

It is an arithmetic number, because the mean of its divisors is an integer number (101859212).

Almost surely, 2^785770947 is an apocalyptic number.

785770947 is a deficient number, since it is larger than the sum of its proper divisors (436539597).

785770947 is a wasteful number, since it uses less digits than its factorization.

785770947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6716010 (or 6716007 counting only the distinct ones).

The product of its (nonzero) digits is 3457440, while the sum is 54.

The square root of 785770947 is about 28031.6062151280. The cubic root of 785770947 is about 922.7810252721.

The spelling of 785770947 in words is "seven hundred eighty-five million, seven hundred seventy thousand, nine hundred forty-seven".