690627469 has 16 divisors (see below), whose sum is σ = 794833920. Its totient is φ = 587825280.

The previous prime is 690627467. The next prime is 690627473. The reversal of 690627469 is 964726096.

It is not a de Polignac number, because 690627469 - 2¹ = 690627467 is a prime.

It is a super-2 number, since 2×690627469² = 953932601874691922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690627467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 941827 + ... + 942559.

It is an arithmetic number, because the mean of its divisors is an integer number (49677120).

Almost surely, 2^690627469 is an apocalyptic number.

It is an amenable number.

690627469 is a deficient number, since it is larger than the sum of its proper divisors (104206451).

690627469 is a wasteful number, since it uses less digits than its factorization.

690627469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500.

The product of its (nonzero) digits is 979776, while the sum is 49.

The square root of 690627469 is about 26279.7920273354. The cubic root of 690627469 is about 883.9233692949.

The spelling of 690627469 in words is "six hundred ninety million, six hundred twenty-seven thousand, four hundred sixty-nine".