699850985 has 8 divisors (see below), whose sum is σ = 889222536. Its totient is φ = 526946560.

The previous prime is 699850981. The next prime is 699851021. The reversal of 699850985 is 589058996.

It can be written as a sum of positive squares in 4 ways, for example, as 31990336 + 667860649 = 5656^2 + 25843^2 .

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

It is not a de Polignac number, because 699850985 - 2² = 699850981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (699850981) 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, 4116686 + ... + 4116855.

It is an arithmetic number, because the mean of its divisors is an integer number (111152817).

Almost surely, 2^699850985 is an apocalyptic number.

It is an amenable number.

699850985 is a deficient number, since it is larger than the sum of its proper divisors (189371551).

699850985 is a wasteful number, since it uses less digits than its factorization.

699850985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8233563.

The product of its (nonzero) digits is 6998400, while the sum is 59.

The square root of 699850985 is about 26454.6968419598. The cubic root of 699850985 is about 887.8409920261.

The spelling of 699850985 in words is "six hundred ninety-nine million, eight hundred fifty thousand, nine hundred eighty-five".