1085470777 has 8 divisors (see below), whose sum is σ = 1112672232. Its totient is φ = 1058304000.

The previous prime is 1085470769. The next prime is 1085470807. The reversal of 1085470777 is 7770745801.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 427496976 + 657973801 = 20676^2 + 25651^2 .

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 1085470777 - 2³ = 1085470769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1085473777) 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, 61777 + ... + 77377.

It is an arithmetic number, because the mean of its divisors is an integer number (139084029).

Almost surely, 2^1085470777 is an apocalyptic number.

It is an amenable number.

1085470777 is a deficient number, since it is larger than the sum of its proper divisors (27201455).

1085470777 is a wasteful number, since it uses less digits than its factorization.

1085470777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17339.

The product of its (nonzero) digits is 384160, while the sum is 46.

The square root of 1085470777 is about 32946.4835301129. The cubic root of 1085470777 is about 1027.7150394008.

The spelling of 1085470777 in words is "one billion, eighty-five million, four hundred seventy thousand, seven hundred seventy-seven".