775887345 has 24 divisors (see below), whose sum is σ = 1345646016. Its totient is φ = 413568288.

The previous prime is 775887319. The next prime is 775887349. The reversal of 775887345 is 543788577.

It is not a de Polignac number, because 775887345 - 2¹⁷ = 775756273 is a prime.

It is a super-2 number, since 2×775887345² = 1204002344262298050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 775887291 and 775887300.

It is not an unprimeable number, because it can be changed into a prime (775887349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97092 + ... + 104778.

It is an arithmetic number, because the mean of its divisors is an integer number (56068584).

Almost surely, 2^775887345 is an apocalyptic number.

It is an amenable number.

775887345 is a deficient number, since it is larger than the sum of its proper divisors (569758671).

775887345 is a wasteful number, since it uses less digits than its factorization.

775887345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9941 (or 9938 counting only the distinct ones).

The product of its digits is 6585600, while the sum is 54.

The square root of 775887345 is about 27854.7544415671. The cubic root of 775887345 is about 918.8957075583.

The spelling of 775887345 in words is "seven hundred seventy-five million, eight hundred eighty-seven thousand, three hundred forty-five".