699403961 has 8 divisors (see below), whose sum is σ = 701852040. Its totient is φ = 696961408.

The previous prime is 699403921. The next prime is 699403963. The reversal of 699403961 is 169304996.

It can be written as a sum of positive squares in 4 ways, for example, as 521848336 + 177555625 = 22844^2 + 13325^2 .

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 699403961 - 2¹⁰ = 699402937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (699403963) 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, 547055 + ... + 548331.

It is an arithmetic number, because the mean of its divisors is an integer number (87731505).

Almost surely, 2^699403961 is an apocalyptic number.

It is an amenable number.

699403961 is a deficient number, since it is larger than the sum of its proper divisors (2448079).

699403961 is a wasteful number, since it uses less digits than its factorization.

699403961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2763.

The product of its (nonzero) digits is 314928, while the sum is 47.

The square root of 699403961 is about 26446.2466335017. The cubic root of 699403961 is about 887.6519180791.

The spelling of 699403961 in words is "six hundred ninety-nine million, four hundred three thousand, nine hundred sixty-one".