870777461 has 8 divisors (see below), whose sum is σ = 901140120. Its totient is φ = 840437248.

The previous prime is 870777443. The next prime is 870777463. The reversal of 870777461 is 164777078.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 210801361 + 659976100 = 14519^2 + 25690^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 870777461 - 2²⁶ = 803668597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870777463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125885 + ... + 132621.

It is an arithmetic number, because the mean of its divisors is an integer number (112642515).

Almost surely, 2^870777461 is an apocalyptic number.

It is an amenable number.

870777461 is a deficient number, since it is larger than the sum of its proper divisors (30362659).

870777461 is a wasteful number, since it uses less digits than its factorization.

870777461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11223.

The product of its (nonzero) digits is 460992, while the sum is 47.

The square root of 870777461 is about 29508.9386627171. The cubic root of 870777461 is about 954.9245523942.

It can be divided in two parts, 8707 and 77461, that added together give a palindrome (86168).

The spelling of 870777461 in words is "eight hundred seventy million, seven hundred seventy-seven thousand, four hundred sixty-one".