690860007 has 24 divisors (see below), whose sum is σ = 1052937600. Its totient is φ = 435291408.

The previous prime is 690859951. The next prime is 690860047. The reversal of 690860007 is 700068096.

It is not a de Polignac number, because 690860007 - 2¹⁸ = 690597863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690860047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70468 + ... + 79670.

It is an arithmetic number, because the mean of its divisors is an integer number (43872400).

Almost surely, 2^690860007 is an apocalyptic number.

690860007 is a deficient number, since it is larger than the sum of its proper divisors (362077593).

690860007 is a wasteful number, since it uses less digits than its factorization.

690860007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9667 (or 9664 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 690860007 is about 26284.2159289563. The cubic root of 690860007 is about 884.0225654204.

The spelling of 690860007 in words is "six hundred ninety million, eight hundred sixty thousand, seven".