690003965 has 16 divisors (see below), whose sum is σ = 969373440. Its totient is φ = 461604480.

The previous prime is 690003961. The next prime is 690004031. The reversal of 690003965 is 569300096.

It is not a de Polignac number, because 690003965 - 2² = 690003961 is a prime.

It is a super-2 number, since 2×690003965² = 952210943431442450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690003961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238985 + ... + 241854.

It is an arithmetic number, because the mean of its divisors is an integer number (60585840).

Almost surely, 2^690003965 is an apocalyptic number.

It is an amenable number.

690003965 is a deficient number, since it is larger than the sum of its proper divisors (279369475).

690003965 is a wasteful number, since it uses less digits than its factorization.

690003965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480892.

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 690003965 is about 26267.9265455041. The cubic root of 690003965 is about 883.6572848431.

The spelling of 690003965 in words is "six hundred ninety million, three thousand, nine hundred sixty-five".