699277745 has 16 divisors (see below), whose sum is σ = 889124688. Its totient is φ = 526141440.

The previous prime is 699277741. The next prime is 699277751. The reversal of 699277745 is 547772996.

It can be written as a sum of positive squares in 8 ways, for example, as 13256881 + 686020864 = 3641^2 + 26192^2 .

It is not a de Polignac number, because 699277745 - 2² = 699277741 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (699277741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200315 + ... + 203775.

It is an arithmetic number, because the mean of its divisors is an integer number (55570293).

Almost surely, 2^699277745 is an apocalyptic number.

It is an amenable number.

699277745 is a deficient number, since it is larger than the sum of its proper divisors (189846943).

699277745 is a wasteful number, since it uses less digits than its factorization.

699277745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5860.

The product of its digits is 6667920, while the sum is 56.

The square root of 699277745 is about 26443.8602514837. The cubic root of 699277745 is about 887.5985189846.

The spelling of 699277745 in words is "six hundred ninety-nine million, two hundred seventy-seven thousand, seven hundred forty-five".