690994514 has 16 divisors (see below), whose sum is σ = 1199558400. Its totient is φ = 292391424.

The previous prime is 690994481. The next prime is 690994537. The reversal of 690994514 is 415499096.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 311279 + ... + 313490.

It is an arithmetic number, because the mean of its divisors is an integer number (74972400).

Almost surely, 2^690994514 is an apocalyptic number.

690994514 is a deficient number, since it is larger than the sum of its proper divisors (508563886).

690994514 is a wasteful number, since it uses less digits than its factorization.

690994514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624857.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 690994514 is about 26286.7745073449. The cubic root of 690994514 is about 884.0799332933.

The spelling of 690994514 in words is "six hundred ninety million, nine hundred ninety-four thousand, five hundred fourteen".