1084260985 has 8 divisors (see below), whose sum is σ = 1304843400. Its totient is φ = 864921984.

The previous prime is 1084260979. The next prime is 1084261007. The reversal of 1084260985 is 5890624801.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 60964864 + 1023296121 = 7808^2 + 31989^2 .

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 1084260985 - 2³ = 1084260977 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308932 + ... + 312421.

It is an arithmetic number, because the mean of its divisors is an integer number (163105425).

Almost surely, 2^1084260985 is an apocalyptic number.

It is an amenable number.

1084260985 is a deficient number, since it is larger than the sum of its proper divisors (220582415).

1084260985 is an equidigital number, since it uses as much as digits as its factorization.

1084260985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621707.

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 1084260985 is about 32928.1184552048. The cubic root of 1084260985 is about 1027.3330903416. Note that the first 3 decimals are identical.

The spelling of 1084260985 in words is "one billion, eighty-four million, two hundred sixty thousand, nine hundred eighty-five".